From 0164a493f186f221a2e8ed44ee7597b7cc37e4c3 Mon Sep 17 00:00:00 2001
From: Lyndon Jetten <lyndon.jetten@beyondsoft.de>
Date: Wed, 11 Nov 2020 15:08:31 +0100
Subject: [PATCH] Fehler im BeWoPlaner mit chat, wenn das fenster geschlossen
 sit

---
 ChatController/ChatMainControl.xaml.cs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/ChatController/ChatMainControl.xaml.cs b/ChatController/ChatMainControl.xaml.cs
index 66f2002..885eb92 100644
--- a/ChatController/ChatMainControl.xaml.cs
+++ b/ChatController/ChatMainControl.xaml.cs
@@ -755,7 +755,11 @@ namespace ChatController
 
                                     if(senderId != receiverId && (_IsInBackground || receiverGroupId != selectedGroupId))
                                     {
-                                        ContainingWindow.Icon = Utils.GetImageSourceFromIcon(Resource.oC_favico_NewMessage);
+                                        if(ContainingWindow != null)
+                                        {
+                                            ContainingWindow.Icon = Utils.GetImageSourceFromIcon(Resource.oC_favico_NewMessage);
+                                        }
+
                                         ShowNotification(newContact.Name, newContact.ReceivedMessage, newContact.GroupId);
                                     }