From d3fd1b8f24ab88823fa5c36c5e05ad14f9b45789 Mon Sep 17 00:00:00 2001
From: Waldi <waldemar.ruppel@beyondsoft.de>
Date: Thu, 16 Nov 2017 15:38:30 +0100
Subject: [PATCH 1/2] Chatcontroll Update for release

---
 ChatController/ChatController.csproj          |   6 +
 .../ChatKlassen/KontaktMessageBuilder.cs      | 117 +++++---
 .../ChatKlassen/KontaktlistBuilder.cs         |  36 ++-
 ChatController/ChatMainControl.xaml           |  14 +-
 ChatController/ChatMainControl.xaml.cs        |  82 ++---
 ChatController/HauptKlassen/Chat.cs           | 284 ++++++++++++------
 ChatController/HauptKlassen/Login.cs          | 104 ++++---
 .../LoginKlassen/ChatGruppenDaten.cs          |   3 +-
 ChatController/Ressourcen/client_default.png  | Bin 0 -> 7009 bytes
 .../Ressourcen/employee_default.png           | Bin 0 -> 162580 bytes
 ChatController/Ressourcen/team_default.png    | Bin 0 -> 6687 bytes
 11 files changed, 420 insertions(+), 226 deletions(-)
 create mode 100644 ChatController/Ressourcen/client_default.png
 create mode 100644 ChatController/Ressourcen/employee_default.png
 create mode 100644 ChatController/Ressourcen/team_default.png

diff --git a/ChatController/ChatController.csproj b/ChatController/ChatController.csproj
index d253163..ac659be 100644
--- a/ChatController/ChatController.csproj
+++ b/ChatController/ChatController.csproj
@@ -34,6 +34,9 @@
     <ApplicationIcon>ownchat_favicon.ico</ApplicationIcon>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="DevExpress.Mvvm.v17.1, Version=17.1.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a, processorArchitecture=MSIL">
+      <Private>False</Private>
+    </Reference>
     <Reference Include="Newtonsoft.Json">
       <HintPath>..\libs\Newtonsoft.Json.dll</HintPath>
     </Reference>
@@ -121,6 +124,9 @@
   </ItemGroup>
   <ItemGroup>
     <Content Include="ownchat_favicon.ico" />
+    <Resource Include="Ressourcen\client_default.png" />
+    <Resource Include="Ressourcen\employee_default.png" />
+    <Resource Include="Ressourcen\team_default.png" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>
\ No newline at end of file
diff --git a/ChatController/ChatKlassen/KontaktMessageBuilder.cs b/ChatController/ChatKlassen/KontaktMessageBuilder.cs
index d516ab1..e387313 100644
--- a/ChatController/ChatKlassen/KontaktMessageBuilder.cs
+++ b/ChatController/ChatKlassen/KontaktMessageBuilder.cs
@@ -21,18 +21,9 @@ namespace ChatController.ChatKlassen
             Username = username;
             UserMessage = message;
             SendTime = sendtime;
-            ConvertetSendtimeString = convertedSendTimeString;
+            InternalSendTime = convertedSendTimeString;
 
-            if (isme)
-            {
-                ChatColor = new BrushConverter().ConvertFromString("#ff5e00") as SolidColorBrush;
-                Posi = "Right";
-            }
-            else
-            {
-                ChatColor = new BrushConverter().ConvertFromString("#cccccc") as SolidColorBrush;
-                Posi = "Left";
-            }
+            Farbgebung(isme);
 
             if (IsHyperlink(message))
             {
@@ -50,29 +41,24 @@ namespace ChatController.ChatKlassen
             DokumentVisibility = Visibility.Collapsed;
             _herunterladen = Visibility.Collapsed;
             _gifPictureVisibility = Visibility.Collapsed;
+
+
+            
+            
         }
         
         // IMage Ansicht 
-        public KontaktMessageBuilder(string username, string message, string sendtime, bool isme, ImageSource image, DateTime convertedSendTimeString,string originalImage)
+        public KontaktMessageBuilder(string username, string message, string sendtime, bool isme, ImageSource image, DateTime convertedSendTimeString,string originalImage, string imageName)
         {
             Username = username;
             UserMessage = message;
             SendTime = sendtime;
             ImageSources = image;
-            ConvertetSendtimeString = convertedSendTimeString;
+            InternalSendTime = convertedSendTimeString;
             OriginalImage = originalImage;
-          //  Dokpfad = 
-
-            if (isme)
-            {
-                ChatColor = new BrushConverter().ConvertFromString("#ff5e00") as SolidColorBrush;
-                Posi = "Right";
-            }
-            else
-            {
-                ChatColor = new BrushConverter().ConvertFromString("#cccccc") as SolidColorBrush;
-                Posi = "Left";
-            }
+            OriginalImageName = imageName;
+            //  Dokpfad = 
+            Farbgebung(isme);
 
             //if (!isGif)
             //{
@@ -91,6 +77,7 @@ namespace ChatController.ChatKlassen
             HyperlinkVisibility = Visibility.Collapsed;
             DokumentVisibility = Visibility.Collapsed;
             _herunterladen = Visibility.Collapsed;
+            
         }
 
         //Dokument Ansicht
@@ -99,31 +86,42 @@ namespace ChatController.ChatKlassen
             Username = username;
             UserMessage = message;
             SendTime = sendtime;
-            ConvertetSendtimeString = convertedSendTimeString;
+            InternalSendTime = convertedSendTimeString;
 
-            Dokpfad = (object) url; 
+            Dokpfad = (object) url;
 
-            if (isme)
-            {
-                ChatColor = new BrushConverter().ConvertFromString("#ff5e00") as SolidColorBrush;
-                Posi = "Right";
-            }
-            else
-            {
-                ChatColor = new BrushConverter().ConvertFromString("#cccccc") as SolidColorBrush;
-                Posi = "Left";
-            }
+            Farbgebung(isme);
 
-            
-            DokumentVisibility = Visibility.Visible;
+
+             DokumentVisibility = Visibility.Visible;
 
             _pictureVisibility = Visibility.Collapsed;           
             ChatVisibility = Visibility.Collapsed;
             SoundVisibility = Visibility.Collapsed;
             _herunterladen = Visibility.Collapsed;
             HyperlinkVisibility = Visibility.Collapsed;
+            
         }
 
+        private void Farbgebung(bool isme)
+        {
+            if (isme)
+            {
+                ChatColor = new BrushConverter().ConvertFromString("#ff5e00") as SolidColorBrush;
+                Posi = "Right";
+                _farbeRechtsColor = new BrushConverter().ConvertFromString("#636363") as SolidColorBrush;
+                _farbeLinksColor = new BrushConverter().ConvertFromString("#636363") as SolidColorBrush;
+            }
+            else
+            {
+                ChatColor = new BrushConverter().ConvertFromString("#FFFFFF") as SolidColorBrush; //"#cccccc"
+                Posi = "Left";
+                _farbeRechtsColor = new BrushConverter().ConvertFromString("#A0A0A0") as SolidColorBrush;
+                _farbeLinksColor = new BrushConverter().ConvertFromString("#A0A0A0") as SolidColorBrush;
+            }
+        }
+
+
         #region Hyperlink Detection
 
         private static readonly Regex UrlRegex = new Regex(@"(?#Protocol)(?:(?:ht|f)tp(?:s?)\:\/\/|~/|/)?(?#Username:Password)(?:\w+:\w+@)?(?#Subdomains)(?:(?:[-\w]+\.)+(?#TopLevel Domains)(?:com|org|net|gov|mil|biz|info|mobi|name|aero|jobs|museum|travel|[a-z]{2}))(?#Port)(?::[\d]{1,5})?(?#Directories)(?:(?:(?:/(?:[-\w~!$+|.,=]|%[a-f\d]{2})+)+|/)+|\?|#)?(?#Query)(?:(?:\?(?:[-\w~!$+|.,*:]|%[a-f\d{2}])+=(?:[-\w~!$+|.,*:=]|%[a-f\d]{2})*)(?:&amp;(?:[-\w~!$+|.,*:]|%[a-f\d{2}])+=(?:[-\w~!$+|.,*:=]|%[a-f\d]{2})*)*)*(?#Anchor)(?:#(?:[-\w~!$+|.,*:=]|%[a-f\d]{2})*)?");
@@ -347,8 +345,9 @@ namespace ChatController.ChatKlassen
         public Brush ChatColor { get; private set; }
         public int ChatPosition { get; private set; }
         public string Posi { get; private set; }
+        public string OriginalImageName { get; private set; }
 
-        public DateTime ConvertetSendtimeString { get; set; }
+        public DateTime InternalSendTime { get; set; }
 
         public Visibility MainVisibility { get; set; }
         public Visibility ChatVisibility { get; set; }
@@ -382,6 +381,44 @@ namespace ChatController.ChatKlassen
 
         public object[] Herunterladbares { get; private set; }
 
+
+        //Farbe Links MEssageHeader
+        private Brush _farbeLinksColor;
+        public Brush FarbeLinksColor
+        {
+            get
+            {
+                return _farbeLinksColor;
+            }
+            set
+            {
+
+                _farbeLinksColor = value;
+
+                OnPropertyChanged("FarbeLinksColor");
+            }
+        }
+
+        //Farbe Rechts MessageHeader
+        private Brush _farbeRechtsColor;
+        public Brush FarbeRechtsColor
+        {
+            get
+            {
+                return _farbeRechtsColor;
+            }
+            set
+            {
+
+                _farbeRechtsColor = value;
+
+                OnPropertyChanged("FarbeRechtsColor");
+            }
+        }
+
+
+       
+
         public event PropertyChangedEventHandler PropertyChanged;
 
         protected virtual void OnPropertyChanged(string propertyName)
diff --git a/ChatController/ChatKlassen/KontaktlistBuilder.cs b/ChatController/ChatKlassen/KontaktlistBuilder.cs
index 98e588d..c9c527c 100644
--- a/ChatController/ChatKlassen/KontaktlistBuilder.cs
+++ b/ChatController/ChatKlassen/KontaktlistBuilder.cs
@@ -80,13 +80,29 @@ namespace ChatController.ChatKlassen
             }
         }
 
+        private Brush _kontaktChatColor;
+        public Brush KontaktChatColor
+        {
+            get
+            {
+                return _kontaktChatColor;
+            }
+            set
+            {
+
+                _kontaktChatColor = value;
+
+                OnPropertyChanged("KontaktChatColor");
+            }
+        }
+
         public ImageSource Image { get; private set; }
         public DateTime TimeStamp { get; set; }
         public long GroupId { get; set; }
         public long UserId { get; set; }
         public long? CustomerPersonOid { get; set; }
 
-        public KontaktlistBuilder(string name, ImageSource image, string lastMs, DateTime timestamp, long groupid,long? customerPersonOid)
+        public KontaktlistBuilder(string name, ImageSource image, string lastMs, DateTime timestamp, long groupid,long? customerPersonOid,bool onlyEmployee, int userCount)
         {
             Name = name;
             ReceiveMs = lastMs;
@@ -96,6 +112,24 @@ namespace ChatController.ChatKlassen
             CustomerPersonOid = customerPersonOid;
             SetzeGelesen = 1;
 
+            if (CustomerPersonOid != null)
+            {
+                _kontaktChatColor = new BrushConverter().ConvertFromString("#3B7799") as SolidColorBrush;
+            }else if (onlyEmployee && userCount > 2)
+            {
+              
+                //Alle gruppen werden grün 
+                _kontaktChatColor = new BrushConverter().ConvertFromString("#45993B") as SolidColorBrush;
+
+            }
+            else
+            {
+                //Alles bleibt wie es war also schwarz
+                _kontaktChatColor = new BrushConverter().ConvertFromString("#000000") as SolidColorBrush;
+
+            }
+            
+
         }
 
         //public KontaktlistBuilder(string name, StatusType statustyp, ImageSource image, long empfaengerid, ChatType typeChat, CompactCustomerDC customer)
diff --git a/ChatController/ChatMainControl.xaml b/ChatController/ChatMainControl.xaml
index c044845..7ae49ed 100644
--- a/ChatController/ChatMainControl.xaml
+++ b/ChatController/ChatMainControl.xaml
@@ -8,7 +8,7 @@
              d:DesignHeight="300" d:DesignWidth="300" >
     <Grid>
       
-      <GroupBox Header="Chat" x:Name="rootGroupBox">
+      <GroupBox Header="Chat" x:Name="rootGroupBox" Background="#F3F3F3">
         <!--Style="{DynamicResource MainContentGroupBoxWithoutMaximizeBtnStyle}"-->
         <Grid   >
           <!--Background="{StaticResource ObjectEditBackgroundBrush}"-->
@@ -125,7 +125,7 @@
                         </Grid.RowDefinitions>
                         <StackPanel Grid.Row="0" Margin="1" >
                           <StackPanel Orientation="Horizontal" TextBlock.FontSize="14" >                                    
-                            <TextBlock Text="{Binding Path=Name, FallbackValue=FirstName}" />
+                            <TextBlock Text="{Binding Path=Name, FallbackValue=FirstName}" Foreground="{Binding Path=KontaktChatColor}" />
                           </StackPanel>
                           <!-- <TextBlock Text="{Binding Path=StatusTyp, FallbackValue=Message}" />-->
                         </StackPanel>
@@ -198,7 +198,7 @@
             </Grid.RowDefinitions>
 
 
-            <ListBox x:Name="AktChatUser"  HorizontalAlignment="Left" Grid.Row="0"  Background="Transparent" BorderBrush="Transparent" VerticalAlignment="Bottom"  ItemTemplate="{DynamicResource DataTemplate2}" MouseDoubleClick="AktChatUser_OnMouseDoubleClick" >           
+            <ListBox x:Name="AktChatUser"  HorizontalAlignment="Left" Grid.Row="0" Background="Transparent"  BorderBrush="Transparent" VerticalAlignment="Bottom"  ItemTemplate="{DynamicResource DataTemplate2}" MouseDoubleClick="AktChatUser_OnMouseDoubleClick" >           
               <ListBox.Resources>
                 <DataTemplate x:Key="DataTemplate2">
                   <Grid>
@@ -227,8 +227,10 @@
               </ListBox.Resources>
             </ListBox>
 
+
+            <!--#####  Chat Bereich ####-->
             <ListBox x:Name="Chat" HorizontalAlignment="Stretch"  ScrollViewer.CanContentScroll="False" VerticalAlignment="Stretch" Margin="3" Grid.Row="1" VirtualizingStackPanel.IsVirtualizing="True" 
-                     VirtualizingStackPanel.VirtualizationMode="Recycling" SelectionMode="Extended" MouseDoubleClick="Chat_OnMouseDoubleClick" ScrollViewer.ScrollChanged="Chat_OnScrollChanged"
+                     VirtualizingStackPanel.VirtualizationMode="Recycling" SelectionMode="Extended" MouseDoubleClick="Chat_OnMouseDoubleClick" ScrollViewer.ScrollChanged="Chat_OnScrollChanged" Background="#F3F3F3"
                       ContextMenuOpening="Chat_OnContextMenuOpening">
               <!--MouseRightButtonDown="OnRightClickEvent"-->
               <ListBox.ItemContainerStyle>
@@ -309,11 +311,11 @@
                         
                         
                         <StackPanel DockPanel.Dock="Left"  Margin="0,0,0,5" >
-                          <TextBlock Text="{Binding Username}" FontWeight="Bold" MaxWidth="150" HorizontalAlignment="Left"  TextAlignment="Left" VerticalAlignment="Center"/>
+                          <TextBlock Text="{Binding Username}" FontSize="8" MaxWidth="150" HorizontalAlignment="Left"  TextAlignment="Left" VerticalAlignment="Center" Foreground="{Binding FarbeLinksColor}" />
                         </StackPanel>
 
                         <StackPanel DockPanel.Dock="Right" Margin="5,0,0,5" >
-                          <TextBlock Text="{Binding SendTime}"  MaxWidth="350"   HorizontalAlignment="Right" TextAlignment="Right" VerticalAlignment="Center"/>
+                          <TextBlock Text="{Binding SendTime}"  MaxWidth="350" FontSize="8"  HorizontalAlignment="Right" TextAlignment="Right" VerticalAlignment="Center" Foreground="{Binding FarbeRechtsColor}" />
                         </StackPanel>
 
                       </DockPanel>
diff --git a/ChatController/ChatMainControl.xaml.cs b/ChatController/ChatMainControl.xaml.cs
index 4663b24..87e8992 100644
--- a/ChatController/ChatMainControl.xaml.cs
+++ b/ChatController/ChatMainControl.xaml.cs
@@ -140,55 +140,7 @@ namespace ChatController
             _isDesktopVersion = false;
         }
         #endregion
-
-        #region Synconisation Veranlassen für Bewoplaner
-        public void SynchronisationVeranlassen()
-        {
-            try
-            {
-                bool doSync = true;
-
-                do
-                {
-                    doSync = _chat.DoSynchronisation(_chatDaten.ApiKey, _chatDaten.Kundennummer);
-
-                    if (doSync)
-                    {  
-                        SpeichereMessageInfoInDatei();
-                        var aktuelleGruppen = _chat.GruppenAktuallisieren();
-
-                        var x = _chat.GroupklassenAktuallisieren(aktuelleGruppen);
-
-                        _kontaktlist = x;
-                 
-                        LeseMessageInfoAusDatei();
-
-                        Dispatcher.BeginInvoke(
-                            DispatcherPriority.Normal,
-                            (Action) delegate
-                            {
-                                //CollectionViewSource.GetDefaultView(Clientlist.Items).Refresh();
-                                Clientlist.Items.Refresh();
-                            });
-                        
-                        Thread.Sleep(TimeSpan.FromMinutes(5));
-                    }
-
-                } while (doSync);
-
-                //sobald nicht mehr in der Schleife dann Close weil dann Sync false
-                if (OnClose != null)
-                {
-                    OnClose();
-                }
-            }
-            catch (Exception e)
-            {
-                MessageBox.Show("Ein Fehler bei der Synchronisation ist aufgetreten.\nFehler:\n" + e.Message, "Fehler",MessageBoxButton.OK);
-            }
-        }
-        #endregion
-
+        
         #region Lade KontaktDaten und Lade sie in den Chat
         private void AktChatUser_OnMouseDoubleClick(object sender, MouseButtonEventArgs e)
         {
@@ -968,6 +920,36 @@ namespace ChatController
             }
         }
 
+        #endregion
+
+        #region Neue Für Bewoplaner | Nicht integriert
+        private void DoSynchroForBewoplaner()
+        {
+            try
+            {
+                while (true) { 
+                    UebergebeMessageInfoDatenFuerDb();
+
+                    var aktuelleGruppen = _chat.GruppenAktuallisieren();
+
+                    var x = _chat.GroupklassenAktuallisieren(aktuelleGruppen);
+
+                    _kontaktlist = x;
+
+                    LeseMessageInfoAusDatei();
+
+                    Clientlist.Items.Refresh();
+                    
+                    Thread.Sleep(5000);
+                }
+            }
+            catch (Exception e)
+            {
+                MessageBox.Show("Es is ein Fehler bei der Kontakt Aktualisierung aufgetreten.\nFehler:\n" + e.Message, "Fehler", MessageBoxButton.OK);
+            }
+        }
+
+
         #endregion
 
         #region speichern sowie lesen der MessageSyncDatei / stylezwecke (OwnChat only)
@@ -1009,7 +991,7 @@ namespace ChatController
             }          
         }
         #endregion
-
+        
         #region Speichern Und LEsen Der MesageSyncDatei (Bewoplaner only) 
 
         public List<KontaktlistBuilder> UebergebeMessageInfoDatenFuerDb()
diff --git a/ChatController/HauptKlassen/Chat.cs b/ChatController/HauptKlassen/Chat.cs
index 639dce1..0925f71 100644
--- a/ChatController/HauptKlassen/Chat.cs
+++ b/ChatController/HauptKlassen/Chat.cs
@@ -3,6 +3,7 @@ using ChatController.Klassen;
 using Newtonsoft.Json;
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Drawing;
 using System.Drawing.Drawing2D;
 using System.Drawing.Imaging;
@@ -73,21 +74,47 @@ namespace ChatController.HauptKlassen
                         {
                             message = lastMS.Text;
 
-                            timestamp = DateTime.Parse(lastMS.Timestamp.Date);
-
-                            var clientZone = TimeZoneInfo.Local;
-                            timeformated = TimeZoneInfo.ConvertTimeFromUtc(timestamp, clientZone);
+                          
                         }
                     }
 
+                    if( value.LastMessage != null) { 
+                        timestamp = DateTime.Parse(lastMS.Timestamp.Date);
+
+                        var clientZone = TimeZoneInfo.Local;
+                        timeformated = TimeZoneInfo.ConvertTimeFromUtc(timestamp, clientZone);
+                    }
+
+
                     if (message.Equals("") && value.LastMessage  != null && !value.LastMessage.File.Equals(""))
                     {
                         message = Path.GetFileName(value.LastMessage.File);
                     }
 
-                    //null steht für employee 
-                    Kontaktliste.Add(new KontaktlistBuilder(value.Name, AvatarToImageSourceConverter(value.Avatar),
-                        message, timeformated, value.Oid, null));
+                    long? isCustomer = null;
+                    bool isC = false;
+                    bool isE = false;
+                    foreach (var user in value.Users)
+                    {
+                        //oid des 
+                        if (user.Oid != ChatDaten.Userid)
+                        {
+                            if (!user.Is_Employee)
+                            {
+                                isCustomer = user.Oid;
+                                isC = true;
+                            }
+                        }
+                    }
+
+                    if (value.Onlyemployees && value.Users.Length == 2)
+                    {
+                        isE = true;
+                    }
+
+                    //null steht für employee
+                    Kontaktliste.Add(new KontaktlistBuilder(value.Name, AvatarToImageSourceConverter(value.Avatar,isE,isC),
+                        message, timeformated, value.Oid, isCustomer,value.Onlyemployees,value.Users.Length));
 
                     if(lastMS != null && lastMS.Timestamp != null && lastMS.Timestamp.Date != null) { 
                         TimeSpan span = (DateTime.Parse(lastMS.Timestamp.Date) - new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc));
@@ -111,7 +138,7 @@ namespace ChatController.HauptKlassen
             //view.Filter = UserFilter;
         }
         
-        private ImageSource AvatarToImageSourceConverter(string avatar)
+        private ImageSource AvatarToImageSourceConverter(string avatar,bool isEmployee, bool isCustomer)
         {
             if (!avatar.Equals(""))
             {
@@ -142,11 +169,26 @@ namespace ChatController.HauptKlassen
             }
             else
             {
+                //team default png
+                string defImage = "pack://application:,,,/ChatController;component/Ressourcen/team_default.png";
+
+                if (isEmployee == true)//original true
+                {
+                    //employee default png
+                    defImage = "pack://application:,,,/ChatController;component/Ressourcen/employee_default.png";
+                }
+
+                if (isCustomer == true)
+                {
+                    //client default png 
+                    defImage = "pack://application:,,,/ChatController;component/Ressourcen/client_default.png";
+                }
+                
                 try
                 {
                     BitmapImage bix = new BitmapImage();
                     bix.BeginInit();
-                    bix.UriSource = new Uri ("pack://application:,,,/ChatController;component/Ressourcen/mitarbeiter-avatar.png"); 
+                    bix.UriSource = new Uri (defImage);//"pack://application:,,,/ChatController;component/Ressourcen/mitarbeiter-avatar.png" 
                     bix.EndInit();
                     return bix;
                 }
@@ -179,32 +221,47 @@ namespace ChatController.HauptKlassen
 
                         if (!ChatMessage.File.Equals("")) 
                         {
+                            string textn = "";
+
+                            if (ChatMessage.Text != null)
+                                textn = ChatMessage.Text;
+
+                            if (textn.Equals(""))
+                                textn = ChatMessage.Original_Filename;
 
                             if (ImageExtensions.Contains(Path.GetExtension(ChatMessage.File).ToUpperInvariant()))
                             {
-                                Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, ChatMessage.Text,
-                                timeformated.ToString("dd MMMM yyyy HH:mm:ss"), true, LadeBildNach(ChatMessage.Smaller_Image),
-                                timeformated,ChatMessage.File));
+                                //string textn = "";
+
+                                //if (ChatMessage.Text != null)
+                                //    textn = ChatMessage.Text;
+
+                                //if (textn.Equals(""))
+                                //    textn = ChatMessage.Original_Filename;
+
+                                Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, textn,
+                                timeformated.ToString("dd MMM | HH:mm"), true, LadeBildNach(ChatMessage.Smaller_Image),
+                                timeformated,ChatMessage.File, ChatMessage.Original_Filename));
                             }
                             else
                                 if (DokumentExtension.Contains(Path.GetExtension(ChatMessage.File).ToUpperInvariant()))
                                 {
-                                    Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, Path.GetFileName(ChatMessage.File),
-                                    timeformated.ToString("dd MMMM yyyy HH:mm:ss"), true,ChatMessage.File,
+                                    Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, textn,
+                                    timeformated.ToString("dd MMM | HH:mm"), true,ChatMessage.File,
                                     timeformated));
                                 }
                                 else
                                 { 
                                     //MP4 und gifs und so unbehandelten dreck 
-                                    Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, Path.GetFileName(ChatMessage.File),
-                                    timeformated.ToString("dd MMMM yyyy HH:mm:ss"), true,ChatMessage.File,
+                                    Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, textn,
+                                    timeformated.ToString("dd MMM | HH:mm"), true,ChatMessage.File,
                                     timeformated));
                                 }
                         }
                         else
                         {
                             Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, ChatMessage.Text,
-                                timeformated.ToString("dd MMMM yyyy HH:mm:ss"), true, timeformated));
+                                timeformated.ToString("dd MMM | HH:mm"), true, timeformated)); //dd MMMM yyyy HH:mm:ss
                         }
                     }
                     else
@@ -217,28 +274,35 @@ namespace ChatController.HauptKlassen
 
                         if (!ChatMessage.File.Equals("")) 
                         {
+                            string textn = "";
+
+                            if (ChatMessage.Text != null)
+                                textn = ChatMessage.Text;
+
+                            if (textn.Equals(""))
+                                textn = ChatMessage.Original_Filename;
+                            
                             if (ImageExtensions.Contains(Path.GetExtension(ChatMessage.File).ToUpperInvariant()))
                             {
-                                //image
-                                Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, ChatMessage.Text,
-                                timeformated.ToString("dd MMMM yyyy HH:mm:ss"), false, LadeBildNach(ChatMessage.Smaller_Image),
-                                timeformated,ChatMessage.File));
+                               
+                                Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, textn,
+                                timeformated.ToString("dd MMM | HH:mm"), false, LadeBildNach(ChatMessage.Smaller_Image),
+                                timeformated,ChatMessage.File, ChatMessage.Original_Filename));
                             }
                             else 
                                 if (DokumentExtension.Contains(Path.GetExtension(ChatMessage.File).ToUpperInvariant()))
                                 {
                                     //Dokument
-                                    Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name,
-                                    Path.GetFileName(ChatMessage.File),
-                                    timeformated.ToString("dd MMMM yyyy HH:mm:ss"), false, ChatMessage.File,
+                                    Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name,textn,                                   
+                                    timeformated.ToString("dd MMM | HH:mm"), false, ChatMessage.File,
                                     timeformated));
                                 }
                                 else
                                 {
                                     //ALLERLEI UNBEHANDELTER KRAM 
                                     Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name,
-                                    Path.GetFileName(ChatMessage.File),
-                                    timeformated.ToString("dd MMMM yyyy HH:mm:ss"), false, ChatMessage.File,
+                                    textn,
+                                    timeformated.ToString("dd MMM | HH:mm"), false, ChatMessage.File,
                                     timeformated));
                                 }
                         }
@@ -246,19 +310,19 @@ namespace ChatController.HauptKlassen
                         {
                             //Message
                             Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, ChatMessage.Text,
-                                timeformated.ToString("dd MMMM yyyy HH:mm:ss"), false, timeformated));
+                                timeformated.ToString("dd MMM | HH:mm"), false, timeformated));
                         }
                     }
                 }
 
 
-                var x = Messages.OrderBy(r => r.ConvertetSendtimeString);
+                var x = Messages.OrderBy(r => r.InternalSendTime);
 
                 return x;
             }
             else
             {
-                return Messages.OrderBy(r => r.ConvertetSendtimeString);
+                return Messages.OrderBy(r => r.InternalSendTime);
             }
         }
 
@@ -383,37 +447,40 @@ namespace ChatController.HauptKlassen
 
                         if (!ChatMessage.File.Equals("")) // Bilder werden Sichtbar 
                         {
+                            string textn = "";
+
+                            if (ChatMessage.Text != null)
+                                textn = ChatMessage.Text;
+
+                            if (textn.Equals(""))
+                                textn = ChatMessage.Original_Filename;
+
+
                             if (ImageExtensions.Contains(Path.GetExtension(ChatMessage.File).ToUpperInvariant()))
                             {
-                                Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, ChatMessage.Text,
-                                timeformated.ToString("dd MMMM yyyy HH:mm:ss"), true, LadeBildNach(ChatMessage.Smaller_Image),
-                                timeformated, ChatMessage.File));
+                                Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name,textn,
+                                timeformated.ToString("dd MMM | HH:mm"), true, LadeBildNach(ChatMessage.Smaller_Image),
+                                timeformated, ChatMessage.File,ChatMessage.Original_Filename));
                             }
                             else 
                                 if (DokumentExtension.Contains(Path.GetExtension(ChatMessage.File).ToUpperInvariant()))
                                 {
-                                    Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name,
-                                        Path.GetFileName(ChatMessage.File),
-                                        timeformated.ToString("dd MMMM yyyy HH:mm:ss"), true, ChatMessage.File,
+                                    Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name,textn,                                       
+                                        timeformated.ToString("dd MMM | HH:mm"), true, ChatMessage.File,
                                         timeformated));
                                 }
                                 else
                                 {
                                     // Der Ganze Unbehndelte Kram 
-                                    Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name,
-                                    Path.GetFileName(ChatMessage.File),
-                                    timeformated.ToString("dd MMMM yyyy HH:mm:ss"), true, ChatMessage.File,
+                                    Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name,textn,                                   
+                                    timeformated.ToString("dd MMM | HH:mm"), true, ChatMessage.File,
                                     timeformated));
                                 }
-
-                            //Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, ChatMessage.Text,
-                            //       timeformated.ToString("dd MMMM yyyy HH:mm:ss"), true, LadeBildNach(ChatMessage.File), timeformated));
-
                         }
                         else
                         {
                             Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, ChatMessage.Text,
-                                    timeformated.ToString("dd MMMM yyyy HH:mm:ss"), true, timeformated));
+                                    timeformated.ToString("dd MMM | HH:mm"), true, timeformated));
                         }
                     }
                     else
@@ -426,45 +493,48 @@ namespace ChatController.HauptKlassen
 
                         if (!ChatMessage.File.Equals("")) 
                         {
+                            //image
+                            string textn = "";
+
+                            if (ChatMessage.Text != null)
+                                textn = ChatMessage.Text;
+
+                            if (textn.Equals(""))
+                                textn = ChatMessage.Original_Filename;
+
                             if (ImageExtensions.Contains(Path.GetExtension(ChatMessage.File).ToUpperInvariant()))
                             {
-                                //image
-                                Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, ChatMessage.Text,
-                                timeformated.ToString("dd MMMM yyyy HH:mm:ss"), false, LadeBildNach(ChatMessage.Smaller_Image),
-                                timeformated, ChatMessage.File));
+                                Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, textn,
+                                timeformated.ToString("dd MMM | HH:mm"), false, LadeBildNach(ChatMessage.Smaller_Image),
+                                timeformated, ChatMessage.File,ChatMessage.Original_Filename));
                             }
                             else 
                                 if (DokumentExtension.Contains(Path.GetExtension(ChatMessage.File).ToUpperInvariant()))
                                 {
                                     //Dokument
-                                    Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name,
-                                    Path.GetFileName(ChatMessage.File),
-                                    timeformated.ToString("dd MMMM yyyy HH:mm:ss"), false, ChatMessage.File,
+                                    Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, textn,                                  
+                                    timeformated.ToString("dd MMM | HH:mm"), false, ChatMessage.File,
                                     timeformated));
                                 }
                                 else
                                 {
                                     //Der Ganze Unbehandelte Kram MP4 und So 
-                                    Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name,
-                                    Path.GetFileName(ChatMessage.File),
-                                    timeformated.ToString("dd MMMM yyyy HH:mm:ss"), false, ChatMessage.File,
+                                    Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name,textn,                                    
+                                    timeformated.ToString("dd MMM | HH:mm"), false, ChatMessage.File,
                                     timeformated));
-                                }
-
-                            //Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, ChatMessage.Text,
-                            //timeformated.ToString("dd MMMM yyyy HH:mm:ss"), false, LadeBildNach(ChatMessage.File), timeformated));
+                                }                         
                         }
                         else
                         {
                             Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, ChatMessage.Text,
-                                timeformated.ToString("dd MMMM yyyy HH:mm:ss"), false, timeformated));
+                                timeformated.ToString("dd MMM | HH:mm"), false, timeformated));
                         }
                     }
                 }
             }
 
 
-            var x = Messages.OrderBy(r => r.ConvertetSendtimeString);
+            var x = Messages.OrderBy(r => r.InternalSendTime);
 
             return x;          
         }
@@ -682,9 +752,32 @@ namespace ChatController.HauptKlassen
                        message = Path.GetFileName(value.LastMessage.File);
                     }
 
+                    long? isCustomer = null;
+                    bool isC = false;
+                    bool isE = false;
+                    foreach (var user in value.Users)
+                    {
+                        //oid des 
+                        if (user.Oid != ChatDaten.Userid)
+                        {
+                            if (!user.Is_Employee)
+                            {
+                                isCustomer = user.Oid;
+                                isC = true;
+                            }
+                            
+                        }
+                    }
+
+                    if (value.Onlyemployees && value.Users.Length == 2)
+                    {
+                        isE = true;
+                    }
+                    
+
                     //null steht für employee 
-                    Kontakt.Add(new KontaktlistBuilder(value.Name, AvatarToImageSourceConverter(value.Avatar),
-                        message, timeformated, value.Oid, null));
+                    Kontakt.Add(new KontaktlistBuilder(value.Name, AvatarToImageSourceConverter(value.Avatar,isE,isC),
+                        message, timeformated, value.Oid, isCustomer, value.Onlyemployees, value.Users.Length));
 
                     if (lastMS != null && lastMS.Timestamp != null && lastMS.Timestamp.Date != null) { 
                         TimeSpan span = (DateTime.Parse(lastMS.Timestamp.Date) - new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc));
@@ -770,7 +863,7 @@ namespace ChatController.HauptKlassen
                 var time = DateTime.Now;
 
                 Messages.Add(new KontaktMessageBuilder(username, nachricht,
-                    time.ToString("dd MMMM yyyy HH:mm:ss"), true, time));
+                    time.ToString("dd MMM | HH:mm"), true, time));
                          
             }
             catch (Exception e)
@@ -876,20 +969,20 @@ namespace ChatController.HauptKlassen
                     logo.EndInit();
 
                     Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, Path.GetFileName(file),
-                    timeformated.ToString("dd MMMM yyyy HH:mm:ss"), true, logo,
-                    timeformated, file));
+                    timeformated.ToString("dd MMM | HH:mm"), true, logo,
+                    timeformated, file, Path.GetFileName(file)));
                 }
                 else if (DokumentExtension.Contains(Path.GetExtension(file).ToUpperInvariant()))
                 {
                     Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, Path.GetFileName(file),
-                    timeformated.ToString("dd MMMM yyyy HH:mm:ss"), true,file,
+                    timeformated.ToString("dd MMM | HH:mm"), true,file,
                     timeformated));
                 }
                 else
                 {
                     //MP4 und gifs und so unbehandelten dreck 
                     Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, Path.GetFileName(file),
-                    timeformated.ToString("dd MMMM yyyy HH:mm:ss"), true, file,
+                    timeformated.ToString("dd MMM | HH:mm"), true, file,
                     timeformated));
                 }
 
@@ -908,7 +1001,6 @@ namespace ChatController.HauptKlassen
 
             if (ImageExtensions.Contains(Path.GetExtension(filename).ToUpperInvariant()))
             {
-
                 BitmapImage biImg = new BitmapImage();
                 MemoryStream ms = new MemoryStream(datei);
                 biImg.BeginInit();
@@ -918,14 +1010,13 @@ namespace ChatController.HauptKlassen
                 ImageSource logo = biImg;
 
                 Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, Path.GetFileName(filename),
-                timeformated.ToString("dd MMMM yyyy HH:mm:ss"), true, logo,
-                timeformated, filename));
+                timeformated.ToString("dd MMM | HH:mm"), true, logo,
+                timeformated, filename, Path.GetFileName(filename)));
             }
             else 
             {
-                
                 Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, Path.GetFileName(filename),
-                timeformated.ToString("dd MMMM yyyy HH:mm:ss"), true, filename,
+                timeformated.ToString("dd MMM | HH:mm"), true, filename,
                 timeformated));
             }
         }
@@ -1544,30 +1635,49 @@ namespace ChatController.HauptKlassen
 
                         //if (val == null) //was tun wenn der nicht merh drinne ist  ??  dann ist das ja auch null 
                         //{
-                            string message = "";
-                            DateTime timestamp = new DateTime();
+                        string message = "";
+                        DateTime timestamp = new DateTime();
 
-                            var lastMS = value.LastMessage;
+                        var lastMS = value.LastMessage;
 
 
-                            if (lastMS != null)
+                        if (lastMS != null)
+                        {
+                            if (lastMS.Text != null)
                             {
-                                if (lastMS.Text != null)
+                                message = lastMS.Text;
+                                timestamp = DateTime.Parse(lastMS.Timestamp.Date);
+                            }
+                        }
+
+                        if (message.Equals("") && value.LastMessage != null && !value.LastMessage.File.Equals(""))
+                        {
+                            message = Path.GetFileName(value.LastMessage.File);
+                        }
+
+                        long? isCustomer = null;
+                        bool isC = false;
+                        bool isE = false;
+                        foreach (var user in value.Users)
+                        { 
+                            if (user.Oid != ChatDaten.Userid)
+                            {
+                                if (!user.Is_Employee)
                                 {
-                                    message = lastMS.Text;
-                                    timestamp = DateTime.Parse(lastMS.Timestamp.Date);
+                                    isCustomer = user.Oid;
+                                    isC = true;
                                 }
                             }
+                        }
 
-                            if (message.Equals("") && value.LastMessage != null && !value.LastMessage.File.Equals(""))
-                            {
-                                message = Path.GetFileName(value.LastMessage.File);
-                            }
-
-                            //null steht für employee 
-                            Kontaktliste.Add(new KontaktlistBuilder(value.Name,
-                                AvatarToImageSourceConverter(value.Avatar),
-                                message, timestamp, value.Oid, null));
+                        if (value.Onlyemployees && value.Users.Length == 2)
+                        {
+                            isE = true;
+                        }
+                        
+                        Kontaktliste.Add(new KontaktlistBuilder(value.Name,
+                                AvatarToImageSourceConverter(value.Avatar,isE,isC),
+                                message, timestamp, value.Oid, isCustomer, value.Onlyemployees, value.Users.Length));
                         //}
                         //else
                         //{
diff --git a/ChatController/HauptKlassen/Login.cs b/ChatController/HauptKlassen/Login.cs
index 40cf60c..67efd8b 100644
--- a/ChatController/HauptKlassen/Login.cs
+++ b/ChatController/HauptKlassen/Login.cs
@@ -18,7 +18,7 @@ namespace ChatController.HauptKlassen
 
         private string _newUrl = "https://dict.ownchat.de/api/server/resolve/1/"; //https://dict.ownchat.de/api/server/resolve/{type}/{customerid}  //type = Diensttyp(1,2,oder 3), customerid  = Kudennummer des Kunden
 
-        private string _serverUrl = "";
+        public string _serverUrl = "";
         private string _authToken = "";
 
         private readonly string _benutzername;
@@ -54,6 +54,12 @@ namespace ChatController.HauptKlassen
             _apikey = apikey;
         }
 
+        //
+        public Login()
+        {
+            ServerErmittlung();
+        }
+
         public ChatDatenUebergabe AnmeldevorgangDurchFuehren()
         {
            if(ServerErmittlung()){
@@ -83,47 +89,55 @@ namespace ChatController.HauptKlassen
         
         public bool ServerErmittlung()
         {
-            try
+            if (_serverUrl.Equals(""))
             {
-                string serverURl = _newUrl + _kundennummer;
-
-                WebRequest request = WebRequest.Create(serverURl);
-
-                request.Credentials = CredentialCache.DefaultCredentials;
-
-                WebResponse response;
-
                 try
                 {
-                    response = request.GetResponse();
-                }
-                catch (Exception e)
-                {
-                     MessageBox.Show("Fehler: Es konnte keine Verbindung aufgebaut werden.", "Fehler", MessageBoxButton.OK,MessageBoxImage.Error);
-                    return false;
-                }
 
-                // Display the status.
-                var statusResponse = ((HttpWebResponse)response).StatusDescription;
-                
-                string responseFromServer = ReadStream(response);
+                    string serverURl = _newUrl + _kundennummer;
 
-                try
+                    WebRequest request = WebRequest.Create(serverURl);
+
+                    request.Credentials = CredentialCache.DefaultCredentials;
+
+                    WebResponse response;
+
+                    try
                     {
-                        var jsonDatentyp = JsonConvert.DeserializeObject<NewAuthentifizierungsDatenTyp1>(responseFromServer);
+                        response = request.GetResponse();
+                    }
+                    catch (Exception e)
+                    {
+                        MessageBox.Show("Fehler: Es konnte keine Verbindung aufgebaut werden.", "ownChat Fehler",
+                            MessageBoxButton.OK, MessageBoxImage.Error);
+                        return false;
+                    }
+
+                    // Display the status.
+                    var statusResponse = ((HttpWebResponse) response).StatusDescription;
+
+                    string responseFromServer = ReadStream(response);
+
+                    try
+                    {
+                        var jsonDatentyp =
+                            JsonConvert.DeserializeObject<NewAuthentifizierungsDatenTyp1>(responseFromServer);
 
                         if (jsonDatentyp.Status == 1)
                         {
-                            MessageBox.Show("Fehler: Kundennummer unbekannt.\nBitte überprüfen Sie die Anmeldeinformationen.","Info",MessageBoxButton.OK,MessageBoxImage.Asterisk);
+                            MessageBox.Show(
+                                "Fehler: Kundennummer unbekannt.\nBitte überprüfen Sie die Anmeldeinformationen.",
+                                "ownChat Info", MessageBoxButton.OK, MessageBoxImage.Asterisk);
                             return false;
                         }
                         else if (jsonDatentyp.Status == 2)
                         {
-                            MessageBox.Show("Der Diensttyp ist für die angegebene Kundennummer nicht definiert.","Info",MessageBoxButton.OK,MessageBoxImage.Asterisk);
+                            MessageBox.Show("Der Diensttyp ist für die angegebene Kundennummer nicht definiert.", "ownChat Info",
+                                MessageBoxButton.OK, MessageBoxImage.Asterisk);
                             return false;
                         }
                         else
-                        { 
+                        {
                             _url = jsonDatentyp.URL;
                         }
                     }
@@ -131,39 +145,48 @@ namespace ChatController.HauptKlassen
                     {
                         try
                         {
-                            var jsonDatentyp = JsonConvert.DeserializeObject<NewAuthentifizierungsDatenTyp2>(responseFromServer);
+                            var jsonDatentyp =
+                                JsonConvert.DeserializeObject<NewAuthentifizierungsDatenTyp2>(responseFromServer);
 
                             if (jsonDatentyp.Status == 1)
                             {
-                                MessageBox.Show("Fehler: Kundennummer unbekannt.\nBitte überprüfen Sie die Anmeldeinformationen.","Info",MessageBoxButton.OK,MessageBoxImage.Asterisk);
+                                MessageBox.Show(
+                                    "Fehler: Kundennummer unbekannt.\nBitte überprüfen Sie die Anmeldeinformationen.",
+                                    "ownChat Info", MessageBoxButton.OK, MessageBoxImage.Asterisk);
                                 return false;
                             }
                             else if (jsonDatentyp.Status == 2)
                             {
-                                MessageBox.Show("Der Diensttyp ist für die angegebene Kundennummer nicht definiert.","Info",MessageBoxButton.OK,MessageBoxImage.Asterisk);
+                                MessageBox.Show("Der Diensttyp ist für die angegebene Kundennummer nicht definiert.",
+                                    "ownChat Info", MessageBoxButton.OK, MessageBoxImage.Asterisk);
                                 return false;
                             }
                             else
-                            { 
+                            {
                                 _url = jsonDatentyp.URL;
                             }
                         }
                         catch (Exception e)
                         {
-                            MessageBox.Show("Fehler: "+e.Message,"Fehler",MessageBoxButton.OK,MessageBoxImage.Error);
-                                
+                            MessageBox.Show("Fehler: " + e.Message, "ownChat Fehler", MessageBoxButton.OK, MessageBoxImage.Error);
+
                         }
                     }
-              
-                response.Close();
 
-                _serverUrl = _url;
-                return true;
+                    response.Close();
+
+                    _serverUrl = _url;
+                    return true;
+                }
+                catch (Exception e)
+                {
+                    MessageBox.Show("Fehler: " + e.Message, "ownChat Fehler", MessageBoxButton.OK, MessageBoxImage.Error);
+                    return false;
+                }
             }
-            catch (Exception e)
+            else
             {
-                MessageBox.Show("Fehler: "+ e.Message,"Fehler",MessageBoxButton.OK,MessageBoxImage.Error);
-                return false;
+                return true;
             }
         }
 
@@ -242,8 +265,7 @@ namespace ChatController.HauptKlassen
                 }
                 catch (Exception e)
                 {
-                    //throw fehler
-                    MessageBox.Show(e.Message, "Fehler", MessageBoxButton.OK,MessageBoxImage.Error);
+                    MessageBox.Show("Fehler:"+e.Message, "Fehler", MessageBoxButton.OK,MessageBoxImage.Error);
                 }
         }
 
diff --git a/ChatController/LoginKlassen/ChatGruppenDaten.cs b/ChatController/LoginKlassen/ChatGruppenDaten.cs
index 22ee4ac..ec78dc9 100644
--- a/ChatController/LoginKlassen/ChatGruppenDaten.cs
+++ b/ChatController/LoginKlassen/ChatGruppenDaten.cs
@@ -23,6 +23,7 @@ namespace ChatController.Klassen
         public string Mobile { get; set; }
         public GroupLastMessage LastMessage { get; set; }
         public GroupUsers[] Users { get; set; }
+        public bool Onlyemployees { get; set; }
     }
 
     public class GroupLastMessage
@@ -47,7 +48,7 @@ namespace ChatController.Klassen
         public string Lastname { get; set; }
         public string Mobile { get; set; }
         public string Picture { get; set; }
-        public bool IsEmployee { get; set; }
+        public bool Is_Employee { get; set; }
     }
 
     public class LastMessageTimeStamp
diff --git a/ChatController/Ressourcen/client_default.png b/ChatController/Ressourcen/client_default.png
new file mode 100644
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literal 0
HcmV?d00001


From 2261e37a20ac43ee30c58d0d22d299a4d25374c2 Mon Sep 17 00:00:00 2001
From: Waldi <waldemar.ruppel@beyondsoft.de>
Date: Fri, 17 Nov 2017 15:40:11 +0100
Subject: [PATCH 2/2] =?UTF-8?q?update=20OwnChat=20Image=20Size=20und=20anz?=
 =?UTF-8?q?eige=20Angepasst,=20funktion=20zur=20ermittlung=20der=20max=20u?=
 =?UTF-8?q?pload=20size=20erstellt=20und=20hinzugef=C3=BCgt?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../ChatKlassen/KontaktMessageBuilder.cs      |  37 +-
 ChatController/ChatMainControl.xaml           |  15 +-
 ChatController/ChatMainControl.xaml.cs        |  46 +-
 ChatController/HauptKlassen/Chat.cs           | 472 ++++++++++++++++--
 ChatController/HauptKlassen/Login.cs          |  44 +-
 .../LoginKlassen/ChatDatenUebergabe.cs        |  16 +-
 6 files changed, 558 insertions(+), 72 deletions(-)

diff --git a/ChatController/ChatKlassen/KontaktMessageBuilder.cs b/ChatController/ChatKlassen/KontaktMessageBuilder.cs
index e387313..35fc847 100644
--- a/ChatController/ChatKlassen/KontaktMessageBuilder.cs
+++ b/ChatController/ChatKlassen/KontaktMessageBuilder.cs
@@ -41,10 +41,11 @@ namespace ChatController.ChatKlassen
             DokumentVisibility = Visibility.Collapsed;
             _herunterladen = Visibility.Collapsed;
             _gifPictureVisibility = Visibility.Collapsed;
+            _picturePlaceHolderVisibility = Visibility.Collapsed;
+
+
 
 
-            
-            
         }
         
         // IMage Ansicht 
@@ -77,7 +78,33 @@ namespace ChatController.ChatKlassen
             HyperlinkVisibility = Visibility.Collapsed;
             DokumentVisibility = Visibility.Collapsed;
             _herunterladen = Visibility.Collapsed;
+            _picturePlaceHolderVisibility = Visibility.Collapsed;
+
+        }
+
+        //Konstruktor PlaceHolder
+        public KontaktMessageBuilder(string username, string message, string sendtime, bool isme, DateTime convertedSendTimeString, string originalImage, string imageName)
+        {
             
+
+            Username = username;
+            UserMessage = message;
+            SendTime = sendtime;
+            InternalSendTime = convertedSendTimeString;
+            OriginalImage = originalImage;
+            OriginalImageName = imageName;
+            
+            Farbgebung(isme);
+
+
+            _pictureVisibility = Visibility.Collapsed;
+            ChatVisibility = Visibility.Collapsed;
+            SoundVisibility = Visibility.Collapsed;
+            HyperlinkVisibility = Visibility.Collapsed;
+            DokumentVisibility = Visibility.Collapsed;
+            _herunterladen = Visibility.Collapsed;
+
+            _picturePlaceHolderVisibility = Visibility.Visible;
         }
 
         //Dokument Ansicht
@@ -100,7 +127,8 @@ namespace ChatController.ChatKlassen
             SoundVisibility = Visibility.Collapsed;
             _herunterladen = Visibility.Collapsed;
             HyperlinkVisibility = Visibility.Collapsed;
-            
+            _picturePlaceHolderVisibility = Visibility.Collapsed;
+
         }
 
         private void Farbgebung(bool isme)
@@ -361,6 +389,9 @@ namespace ChatController.ChatKlassen
         private Visibility _pictureVisibility;
         public Visibility PictureVisibility { get { return _pictureVisibility; } set { _pictureVisibility = value; OnPropertyChanged("PictureVisibility"); } }
 
+        private Visibility _picturePlaceHolderVisibility;
+        public Visibility PicturePlaceHolderVisibility { get { return _picturePlaceHolderVisibility; } set { _picturePlaceHolderVisibility = value; OnPropertyChanged("PicturePlaceHolderVisibility"); } }
+
         private Visibility _gifPictureVisibility;
         public Visibility GifPictureVisibility { get { return _gifPictureVisibility; } set { _gifPictureVisibility = value; OnPropertyChanged("GifPictureVisibility"); } }
 
diff --git a/ChatController/ChatMainControl.xaml b/ChatController/ChatMainControl.xaml
index 7ae49ed..1f131a0 100644
--- a/ChatController/ChatMainControl.xaml
+++ b/ChatController/ChatMainControl.xaml
@@ -268,15 +268,26 @@
                         </StackPanel>
 
                         
-                        <!-- Bild bereich-->
+                        <!-- Bild bereich MaxHeight="200" MaxWidth="300" Stretch uniform-->
                         <DockPanel DockPanel.Dock="Bottom" Visibility="{Binding PictureVisibility}" >
                           <StackPanel Orientation="Vertical">
-                            <Image  Stretch="Uniform" MaxHeight="200" MaxWidth="300" Source="{Binding ImageSources}" RenderOptions.BitmapScalingMode="HighQuality"  />
+                            <Image  MaxHeight="200" MaxWidth="300" Source="{Binding ImageSources}" RenderOptions.BitmapScalingMode="HighQuality"  />
 
                             <TextBlock  Text="{Binding UserMessage}" VerticalAlignment="Center" HorizontalAlignment="Left" />  
                           </StackPanel>
                         </DockPanel>
 
+
+                        <!-- Image Placeholder -->
+                        <DockPanel DockPanel.Dock="Bottom" Visibility="{Binding PicturePlaceHolderVisibility}" >
+                          <StackPanel Orientation="Vertical">
+                            <Image   Source="pack://application:,,,/ChatController;component/Ressourcen/ClipboardDisabled.png" RenderOptions.BitmapScalingMode="HighQuality"  />
+
+                            <TextBlock  Text="{Binding UserMessage}" VerticalAlignment="Center" HorizontalAlignment="Left" />
+                          </StackPanel>
+                        </DockPanel>
+
+
                         <!-- Gif BEreich ??    <MediaElement Source="" ></MediaElement>  villeicht gif erstmal runterladen und dann den pfad ausgeben ?  200
                       <DockPanel DockPanel.Dock="Bottom" Visibility="{Binding GifPictureVisibility}"  >
                         <StackPanel Orientation="Vertical">
diff --git a/ChatController/ChatMainControl.xaml.cs b/ChatController/ChatMainControl.xaml.cs
index 87e8992..f813c21 100644
--- a/ChatController/ChatMainControl.xaml.cs
+++ b/ChatController/ChatMainControl.xaml.cs
@@ -375,14 +375,28 @@ namespace ChatController
                 var medium = _chat.HoleMedium();
 
                 if(medium != null) {
-                    _chat.AddeMediumDerNachrichtView(medium);
 
-                    CollectionViewSource.GetDefaultView(Chat.ItemsSource).Refresh();
-                    Chat.Items.MoveCurrentToLast();
-                    Chat.ScrollIntoView(Chat.Items.CurrentItem);
-                    
-                    _chat.SendeMediumAnKontakt(kontakt,medium);
-                
+                    string convertetMedia = _chat.ScaleImage(medium, Path.GetExtension(medium.ToUpperInvariant()));
+
+                    if (!convertetMedia.Equals(""))
+                    {
+                        _chat.AddeMediumDerNachrichtView(convertetMedia);
+
+                        CollectionViewSource.GetDefaultView(Chat.ItemsSource).Refresh();
+                        Chat.Items.MoveCurrentToLast();
+                        Chat.ScrollIntoView(Chat.Items.CurrentItem);
+
+                        _chat.SendeMediumAnKontakt(kontakt, convertetMedia);
+
+                        if (!convertetMedia.Equals("") && File.Exists(convertetMedia))
+                        {
+                            File.Delete(convertetMedia);
+                        }
+                    }
+                    else
+                    {
+                        MessageBox.Show("Die gewählte Datei ist zu groß!", "Fehler", MessageBoxButton.OK);
+                    }
                 }
             }
             else
@@ -720,6 +734,18 @@ namespace ChatController
                                             }
                                         }
                                     }
+                                    
+                                    //abchecken ob neue Groupid in liste vorhanden , wenn nicht dann adde neuen kontakt der liste hinzu
+                                    if (!_kontaktlist.Contains(neu))
+                                    {
+                                        _kontaktlist.ToList().Add(neu);
+                                    }
+                                }  
+                                
+                                //umgekert ist eine kontakt aus der liste nicht mehr in neu muss diese raus 
+                                if (!alist.Contains(liste))
+                                {
+                                    _kontaktlist.ToList().Remove(liste);
                                 }
                             }
                             
@@ -922,13 +948,13 @@ namespace ChatController
 
         #endregion
 
-        #region Neue Für Bewoplaner | Nicht integriert
+        #region Neue Für Bewoplaner | Nicht integriert | Wird nicht mehr gebraucht ?? wegnehmen
         private void DoSynchroForBewoplaner()
         {
             try
             {
                 while (true) { 
-                    UebergebeMessageInfoDatenFuerDb();
+                   // UebergebeMessageInfoDatenFuerDb();
 
                     var aktuelleGruppen = _chat.GruppenAktuallisieren();
 
@@ -936,7 +962,7 @@ namespace ChatController
 
                     _kontaktlist = x;
 
-                    LeseMessageInfoAusDatei();
+                    //ErhalteMessageInfoVonDb();
 
                     Clientlist.Items.Refresh();
                     
diff --git a/ChatController/HauptKlassen/Chat.cs b/ChatController/HauptKlassen/Chat.cs
index 0925f71..87d96aa 100644
--- a/ChatController/HauptKlassen/Chat.cs
+++ b/ChatController/HauptKlassen/Chat.cs
@@ -4,6 +4,7 @@ using Newtonsoft.Json;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
+using System.Diagnostics;
 using System.Drawing;
 using System.Drawing.Drawing2D;
 using System.Drawing.Imaging;
@@ -47,7 +48,7 @@ namespace ChatController.HauptKlassen
         public static readonly List<string> DokumentExtension = new List<string> { ".TXT", ".PPT", ".XLS", ".DOC",".PDF" };
 
         private long lastTimeStamp=0;
-
+        
         public Chat(ChatDatenUebergabe chatDaten)
         {
             ChatDaten = chatDaten;
@@ -157,8 +158,11 @@ namespace ChatController.HauptKlassen
                     ms.Position = 0;
                     BitmapImage bi = new BitmapImage();
                     bi.BeginInit();
+                    bi.CacheOption = BitmapCacheOption.OnLoad;
                     bi.StreamSource = ms;
                     bi.EndInit();
+                    ms.Dispose();
+                    ms.Close();
 
                     return bi;
                 }
@@ -963,14 +967,93 @@ namespace ChatController.HauptKlassen
 
                 if (ImageExtensions.Contains(Path.GetExtension(file).ToUpperInvariant()))
                 {
-                    BitmapImage logo = new BitmapImage();
-                    logo.BeginInit();
-                    logo.UriSource = new Uri(file);
-                    logo.EndInit();
+                    byte[] mdatei;
+                    using (Stream reader = File.OpenRead(file))
+                    {
+                        mdatei = ReadFully(reader);
+                    }
+
+                    MemoryStream mss = new MemoryStream(mdatei);
+                    System.Drawing.Image Img = System.Drawing.Image.FromStream(mss);
+
+
+                    using (System.Drawing.Bitmap dImg = new System.Drawing.Bitmap(Img))
+                    {
+                        using (MemoryStream ms = new MemoryStream())
+                        {
+                            short orient = 0;
+                            int orientationId = 0x0112;
+
+                            if (Img.PropertyIdList.Contains(orientationId))
+                            {
+                                PropertyItem item = Img.GetPropertyItem(orientationId);
+
+
+                                orient = BitConverter.ToInt16(item.Value, 0);
+                                
+                                dImg.SetPropertyItem(item);
+                            }
+
+
+                            var x = OrientationToFlipType(orient.ToString());
+
+                            dImg.RotateFlip(x); 
+
+                            dImg.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
+
+
+                            System.Windows.Media.Imaging.BitmapImage bImg = new System.Windows.Media.Imaging.BitmapImage();
+
+                            bImg.BeginInit();
+                            bImg.StreamSource = new MemoryStream(ms.ToArray());
+                            bImg.EndInit();
+
+                            System.Windows.Controls.Image img = new System.Windows.Controls.Image();
+                            img.Source = bImg;
+
+
+                            Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, Path.GetFileName(file),
+                            timeformated.ToString("dd MMM | HH:mm"), true, bImg,
+                            timeformated, file, Path.GetFileName(file)));
+                        }
+                    }
+
+
+                    //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+                    //var image = new BitmapImage();
+
+                    //using (var ms = new System.IO.MemoryStream(mdatei))
+                    //{
+
+                    //    image.BeginInit();
+                    //    image.CacheOption = BitmapCacheOption.OnLoad; // here
+                    //    image.StreamSource = ms;
+                    //    image.EndInit();                  
+
+                    //    ms.Dispose();
+                    //}
+
+                    //int orientationId = 0x0112;
+
+                    //if (Img.PropertyIdList.Contains(orientationId))
+                    //{
+                    //    PropertyItem item = Img.GetPropertyItem(orientationId);
+
+                    //    //image.SetPropertyItem(item);
+                    //}
+
+
+                    //Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, Path.GetFileName(file),
+                    // timeformated.ToString("dd MMM | HH:mm"), true, image,
+                    // timeformated, file, Path.GetFileName(file)));
+
+                    mss.Dispose();
+                    mss.Close();
+
+                    //Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, Path.GetFileName(file),
+                    //        timeformated.ToString("dd MMM | HH:mm"), true, timeformated, file, Path.GetFileName(file)));
+                           
 
-                    Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, Path.GetFileName(file),
-                    timeformated.ToString("dd MMM | HH:mm"), true, logo,
-                    timeformated, file, Path.GetFileName(file)));
                 }
                 else if (DokumentExtension.Contains(Path.GetExtension(file).ToUpperInvariant()))
                 {
@@ -1007,6 +1090,7 @@ namespace ChatController.HauptKlassen
                 biImg.StreamSource = ms;
                 biImg.EndInit();
 
+                ms.Close();
                 ImageSource logo = biImg;
 
                 Messages.Add(new KontaktMessageBuilder(ChatMessage.User_Name, Path.GetFileName(filename),
@@ -1041,16 +1125,17 @@ namespace ChatController.HauptKlassen
                 mdatei = ReadFully(reader);
             }
             
-            string filename = Path.GetFileName(file);
+            string filename = Path.GetFileName(file).ToLower();
 
             //Medium auflösung auf 80 % vom original setzen 
             //Image x = (Bitmap)((new ImageConverter()).ConvertFrom(mdatei));
 
             // image wieder in byte[] umwandeln und übergeben 
             if (ImageExtensions.Contains(Path.GetExtension(filename).ToUpperInvariant())){ 
-                var scaledImage = ScaleImage(mdatei);
+                
+                filename = filename.Replace(".bmp", ".jpg");
 
-                SendMediaMessage(filename, kontakt.GroupId, scaledImage);
+                SendMediaMessage(filename, kontakt.GroupId, mdatei);
             }
             else
             {
@@ -1059,39 +1144,172 @@ namespace ChatController.HauptKlassen
 
         }
 
-        private byte[] ScaleImage(byte[] mdatei)
+        public string ScaleImage(string file,string format)
         {
             try
             {
+                byte[] mdatei;
+                using (Stream reader = File.OpenRead(file))
+                {
+                    mdatei = ReadFully(reader);
+                }
+
+             
                 MemoryStream ms = new MemoryStream(mdatei);
                 System.Drawing.Image Image = System.Drawing.Image.FromStream(ms);
                 
-                int width = (int) (Image.Width / 100 * 80);
-                int height = (int) (Image.Height / 100 * 80);
-                System.Drawing.Bitmap bmpScaled = new System.Drawing.Bitmap(Image);
+
+                float width = 0;
+                float height = 0;
+                //Querformat
+                if (Image.Height < Image.Width )
+                {
+                   
+                    if (Image.Height > 1080)
+                    {
+                        float factor = (float)Image.Height / 1080;
+
+                        height = 1080;
+
+                        width = Image.Width / factor;
+                    }
+                    else
+                    {
+                        return file;
+                    }
+                }
+                else if(Image.Height < 1080 && Image.Width < 1080 )
+                {
+                    return file;
+                }
+                else // Hochformat
+                {
+                    if (Image.Width > 1080)
+                    {
+                        float factor = (float)Image.Width / 1080;
+
+                        width = 1080;
+
+                        height = Image.Height / factor;
+                    }
+                    else
+                    {
+                        return file;
+                    }
+                }
+                
+                
+                System.Drawing.Bitmap bmpScaled = new System.Drawing.Bitmap(Image,new Size((int)width,(int)height));
+
+                int orientationId = 0x0112;
+                
+                if (Image.PropertyIdList.Contains(orientationId)) {
+                    PropertyItem  item = Image.GetPropertyItem(orientationId);
+                    
+                    bmpScaled.SetPropertyItem(item);
+                }
 
                 using (Graphics gr = Graphics.FromImage(Image))
                 {
                     gr.Clear(Color.Transparent);
 
                     // falls jemand mekert, muss die intergedönse erhöht werden  
-                    gr.InterpolationMode = InterpolationMode.NearestNeighbor; // InterpolationMode.HighQualityBicubic;
+                    gr.InterpolationMode = InterpolationMode.Low; // InterpolationMode.HighQualityBicubic;
 
-                    gr.DrawImage(bmpScaled, 0, 0, width, height);
+                    
+                    gr.DrawImage(bmpScaled, (int)width, (int)height);
+                    //bitMap = gr.GetHdc();
                 }
 
                 ImageConverter converter = new ImageConverter();
-                byte[] imageData = (byte[]) converter.ConvertTo(bmpScaled, typeof(byte[]));
 
-                return imageData;               
+                byte[] imageData = (byte[])converter.ConvertTo(bmpScaled, typeof(byte[]));
+
+                
+                string filePath =  System.IO.Path.GetTempPath() + Guid.NewGuid().ToString() + format;
+
+               
+                //".JPG", ".JPE", ".BMP", ".GIF", ".PNG", ".JPEG" 
+                if (format.Equals(".JPG") || format.Equals(".JPE") || format.Equals(".JPEG") || format.Equals(".BMP"))
+                {
+                    bmpScaled.Save(filePath, ImageFormat.Jpeg);
+                }else if (format.Equals(".PNG"))
+                {
+                    bmpScaled.Save(filePath, ImageFormat.Png);
+                }
+                else if (format.Equals(".GIF"))
+                {
+                    bmpScaled.Save(filePath, ImageFormat.Gif);
+                }
+
+                if (File.Exists(filePath))
+                {
+                    FileInfo f = new FileInfo(filePath);
+                    long s1 = f.Length;
+
+                    if (ChatDaten.MaxUploadSize < s1)
+                    {
+                        File.Delete(filePath);
+                        return "";
+                    }
+                }
+                else
+                {
+                    return "";
+                }
+
+                //byte[] datei;
+                //using (Stream reader = File.OpenRead(filePath))
+                //{
+                //    datei = ReadFully(reader);
+                //}
+                ms.Dispose();
+                ms.Close();
+                
+                return filePath;               
             }
             catch (Exception e)
             {
                 MessageBox.Show(e.Message, "Fehler");
-                return mdatei;
+                return file;
             }
         }
 
+        public static RotateFlipType OrientationToFlipType(string orientation)
+        {
+            switch (int.Parse(orientation))
+            {
+                case 1:
+                    return RotateFlipType.RotateNoneFlipNone;
+                    break;
+                case 2:
+                    return RotateFlipType.RotateNoneFlipX;
+                    break;
+                case 3:
+                    return RotateFlipType.Rotate180FlipNone;
+                    break;
+                case 4:
+                    return RotateFlipType.Rotate180FlipX;
+                    break;
+                case 5:
+                    return RotateFlipType.Rotate90FlipX;
+                    break;
+                case 6:
+                    return RotateFlipType.Rotate90FlipNone;
+                    break;
+                case 7:
+                    return RotateFlipType.Rotate270FlipX;
+                    break;
+                case 8:
+                    return RotateFlipType.Rotate270FlipNone;
+                    break;
+                default:
+                    return RotateFlipType.RotateNoneFlipNone;
+            }
+        }
+
+
+
         private static byte[] ReadFully(Stream stream)
         {
             byte[] buffer = new byte[32768];
@@ -1469,49 +1687,157 @@ namespace ChatController.HauptKlassen
             {
                 using (Form form = new Form())
                 {
-                    Image imgg = new Image();
+                    //Image imgg = new Image();
 
-                    BitmapImage bix = new BitmapImage();
-                    using (var stream = new MemoryStream(e.Result))
+                    //BitmapImage bix = new BitmapImage();
+                    //using (var stream = new MemoryStream(e.Result))
+                    //{
+                    //    bix.BeginInit();
+                    //    bix.CacheOption = BitmapCacheOption.OnLoad;
+                    //    bix.StreamSource = stream;
+                    //    bix.EndInit();
+                    //}
+
+                    //imgg.Source = bix;
+
+                    //BmpBitmapEncoder encoder = new BmpBitmapEncoder();
+                    //MemoryStream ms = new MemoryStream();
+                    //encoder.Frames.Add(BitmapFrame.Create((BitmapSource) imgg.Source));
+                    //encoder.Save(ms);
+                    //System.Drawing.Image img = System.Drawing.Image.FromStream(ms);
+
+                    //##################################################################################
+                    MemoryStream ms = new MemoryStream(e.Result);
+                    System.Drawing.Image Img = System.Drawing.Image.FromStream(ms);
+
+
+                    using (System.Drawing.Bitmap dImg = new System.Drawing.Bitmap(Img))
                     {
-                        bix.BeginInit();
-                        bix.CacheOption = BitmapCacheOption.OnLoad;
-                        bix.StreamSource = stream;
-                        bix.EndInit();
-                    }
+                        using (MemoryStream mss = new MemoryStream())
+                        {
+                            short orient = 0;
+                            int orientationId = 0x0112;
 
-                    imgg.Source = bix;
+                            if (Img.PropertyIdList.Contains(orientationId))
+                            {
+                                PropertyItem item = Img.GetPropertyItem(orientationId);
+                                
+                                orient = BitConverter.ToInt16(item.Value, 0);
 
-                    BmpBitmapEncoder encoder = new BmpBitmapEncoder();
-                    MemoryStream ms = new MemoryStream();
-                    encoder.Frames.Add(BitmapFrame.Create((BitmapSource) imgg.Source));
-                    encoder.Save(ms);
-                    System.Drawing.Image img = System.Drawing.Image.FromStream(ms);
+                                dImg.SetPropertyItem(item);
+                                
+                            }
+                          
 
-                    Bitmap imgbit = new Bitmap(img);
+                            var x = OrientationToFlipType(orient.ToString());
 
-                    form.StartPosition = FormStartPosition.CenterScreen;
-                    form.Size = imgbit.Size;
-                    form.MinimumSize = new Size(150,150);
-
-                    var width = (int)Math.Round(System.Windows.SystemParameters.PrimaryScreenWidth / 1.25);
-                    var height = (int)Math.Round(System.Windows.SystemParameters.PrimaryScreenWidth / 2);
-                    form.MaximumSize = new Size(width, height);
-                    form.FormBorderStyle = FormBorderStyle.Sizable;
-
-                    form.MaximizeBox = false;
+                            dImg.RotateFlip(x);
                     
-                    form.Text = "ownChat Bild Voschau";
-                    form.Icon = Icon.ExtractAssociatedIcon(Application.ExecutablePath);
+                            
+                            form.StartPosition = FormStartPosition.CenterScreen;
+                            form.Size = dImg.Size;//imgbit
+                            form.MinimumSize = new Size(180,180);
+
+                            #region Screen Size-ing
+                            
+                            int width = 0;
+                            int height = 0;
+                            int targetwidth = (int)Math.Round(System.Windows.SystemParameters.PrimaryScreenWidth / 1.25);
+                    
+                                                
+                                    //Querformat
+                            if (dImg.Height < dImg.Width)
+                            {
+
+                                    float factor = (float)dImg.Height / targetwidth;
+
+                                    height =targetwidth;
+
+                                    width = (int)Math.Round(dImg.Width / factor);
+                      
+                            }               
+                            else // Hochformat
+                            {
+                                    float factor = (float)dImg.Width / targetwidth;
+
+                                    width = targetwidth;
+
+                                    height = (int)Math.Round(dImg.Height / factor);
+                      
+                            }
+
+                            if (dImg.Width < targetwidth)
+                            {
+                                width = dImg.Width;
+                                height = dImg.Height;
+                            }
+                            //#################################
+
+                            int targetheight = (int)Math.Round(System.Windows.SystemParameters.PrimaryScreenHeight / 1.25);
+
+
+                            //Querformat
+                            if (dImg.Height < dImg.Width)
+                            {
+
+                                float factor = (float)dImg.Width / targetheight;
+
+                                width = targetheight;
+
+                                height = (int)Math.Round(dImg.Height / factor);
+
+                            }
+                            else // Hochformat
+                            {
+                                float factor = (float)dImg.Height / targetheight;
+
+                                height = targetheight;
+
+                                width = (int)Math.Round(dImg.Width / factor);
+
+                            }
+
+                            if (dImg.Height < targetheight)
+                            {
+                                width = dImg.Width;
+                                height = dImg.Height;
+                            }
+                            
+                            //##########################################
+                            if (width < 150 || height < 150)
+                            {
+                                width = 150;
+                                height = 150;
+                            }
+                
+                            #endregion
+                            
+                            form.MaximumSize = new Size(width, height);
+                            
+                            
+                            form.FormBorderStyle = FormBorderStyle.Sizable;
+
+                            form.MaximizeBox = false;
+                    
+                            form.Text = "ownChat Bild Voschau";
+                            form.Icon = Icon.ExtractAssociatedIcon(Application.ExecutablePath);
+
+                            PictureBox pb = new PictureBox();
+                            pb.Dock = DockStyle.Fill;
+                            pb.Image = dImg;//imgbit
+
+                            pb.SizeMode = PictureBoxSizeMode.StretchImage;
+
+                            form.Controls.Add(pb);
+                            form.ShowDialog();
+                        } //
+                    }//
+
+
+                    ms.Dispose();
+                    ms.Close();
 
-                    PictureBox pb = new PictureBox();
-                    pb.Dock = DockStyle.Fill;
-                    pb.Image = imgbit;
-
-                    pb.SizeMode = PictureBoxSizeMode.StretchImage;
                     
-                    form.Controls.Add(pb);
-                    form.ShowDialog();
                 }
             }
             catch (Exception edf)
@@ -1572,6 +1898,44 @@ namespace ChatController.HauptKlassen
             }
         }
 
+        #endregion
+
+        #region Maximal erlaubte File Größe
+
+        public long GetMaiximumAllowedFileUploadSize(string apikey,string customerid)
+        {
+            try
+            {
+                var endurl = ChatDaten.ServerUrl + "/api/ownchat/uploadmaxsize";// + apikey + "/" + customerid;
+
+                WebRequest request = WebRequest.Create(endurl);
+                requesten.Headers["Token"] = apikey;
+                requesten.Headers["CustomerID"] = customerid;
+
+                request.Credentials = CredentialCache.DefaultCredentials;
+                request.Proxy = null;
+
+                WebResponse response = request.GetResponse();
+
+                // Display the status.
+                var statusResponse = ((HttpWebResponse)response).StatusDescription;
+
+                string responseFromServer = ReadStream(response);
+
+                var definiti = new { file_upload_max_size = "" };
+
+                var jsonDatentyp = JsonConvert.DeserializeAnonymousType(responseFromServer, definiti);
+
+
+                return Convert.ToInt64(jsonDatentyp.file_upload_max_size);
+            }
+            catch (Exception e)
+            {
+                throw;
+            }
+        }
+
+
         #endregion
 
         #region Neue Gruppen Holen für OwnChatDesktop
diff --git a/ChatController/HauptKlassen/Login.cs b/ChatController/HauptKlassen/Login.cs
index 67efd8b..c1e82e7 100644
--- a/ChatController/HauptKlassen/Login.cs
+++ b/ChatController/HauptKlassen/Login.cs
@@ -78,8 +78,11 @@ namespace ChatController.HauptKlassen
 
 
                 if (_gruppeholenverbindungsaufbauOK)
-                {               
-                    ChatDatenUebergabe ubergabe = new ChatDatenUebergabe(_serverconect, _userconect, _groupconect, _serverUrl, _authToken, _userid, _kundennummer,_apikey);
+                {
+
+                    long maxUploadSize = GetMaiximumAllowedFileUploadSize(_authToken,_kundennummer);
+
+                    ChatDatenUebergabe ubergabe = new ChatDatenUebergabe(_serverconect, _userconect, _groupconect, _serverUrl, _authToken, _userid, _kundennummer,_apikey, maxUploadSize);
 
                     return ubergabe;
                 }
@@ -332,5 +335,42 @@ namespace ChatController.HauptKlassen
             }
         }
 
+        #region Maximal erlaubte File Größe
+
+        public long GetMaiximumAllowedFileUploadSize(string token, string customerid)
+        {
+            try
+            {
+                var endurl = _serverUrl + "/api/ownchat/uploadmaxsize";// + apikey + "/" + customerid;
+
+                WebRequest request = WebRequest.Create(endurl);
+                request.Headers["Token"] = token; 
+                request.Headers["CustomerID"] = customerid;
+
+                request.Credentials = CredentialCache.DefaultCredentials;
+                request.Proxy = null;
+
+                WebResponse response = request.GetResponse();
+
+                // Display the status.
+                var statusResponse = ((HttpWebResponse)response).StatusDescription;
+
+                string responseFromServer = ReadStream(response);
+
+                var definiti = new { file_upload_max_size = "" };
+
+                var jsonDatentyp = JsonConvert.DeserializeAnonymousType(responseFromServer, definiti);
+
+
+                return Convert.ToInt64(jsonDatentyp.file_upload_max_size);
+            }
+            catch (Exception e)
+            {
+                return 0;
+            }
+        }
+        
+        #endregion
+
     }
 }
diff --git a/ChatController/LoginKlassen/ChatDatenUebergabe.cs b/ChatController/LoginKlassen/ChatDatenUebergabe.cs
index cb206bd..ec0a40b 100644
--- a/ChatController/LoginKlassen/ChatDatenUebergabe.cs
+++ b/ChatController/LoginKlassen/ChatDatenUebergabe.cs
@@ -17,8 +17,9 @@ namespace ChatController.Klassen
         private long? _userid { get; set; }
         private string _kundennummer { get; set; }
         private string _apikey { get; set; }
+        private long _maxUploadSize { get; set; }
 
-        public ChatDatenUebergabe(AuthentifizierungsDaten serverConect, UserDaten userConect, ChatGruppenDaten groupConect, string serverUrl, string authToken, long? userid, string kundennummer, string apikey)
+        public ChatDatenUebergabe(AuthentifizierungsDaten serverConect, UserDaten userConect, ChatGruppenDaten groupConect, string serverUrl, string authToken, long? userid, string kundennummer, string apikey,long maxUploadSize)
         {
             _serverconect = serverConect;
             _userconect = userConect;
@@ -29,6 +30,7 @@ namespace ChatController.Klassen
             _userid = userid;
             _kundennummer = kundennummer;
             _apikey = apikey;
+            _maxUploadSize = maxUploadSize;
         }
 
         public AuthentifizierungsDaten Serverconect
@@ -126,5 +128,17 @@ namespace ChatController.Klassen
                 _apikey = value;
             }
         }
+
+        public long MaxUploadSize
+        {
+            get
+            {
+                return _maxUploadSize;
+            }
+            private set
+            {
+                _maxUploadSize = value;
+            }
+        }
     }
 }