BeWoPlaner/BeWoPlanerMobil/Models/ReportModel.cs

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Web.Mvc;
using BeWoPlanerMobil.Util;
using BS.Shared.DataContracts.Compact;

namespace BeWoPlanerMobil.Models
{
    public class ReportModel : AbstractModel
    {
        [Display(Name = "Klient")]
        public long? SelectedCustomerOid => SelectedCustomer?.CustomerOid;

        public CompactCustomerDC SelectedCustomer { get; set; }

        public List<CompactCustomerDC> Customers { get; set; }

        public IEnumerable<SelectListItem> CustomerListItems
        {
            get
            {
                var result = new List<SelectListItem>();

                result.AddRange(Customers.Select(customer => new SelectListItem {Value = customer.CustomerOid.ToString(), Text = customer.ToString()}));

                return result;
            }
        }

        [Display(Name = "Monat")]
        public int SelectedMonth { get; set; }

        [Display(Name = "Jahr")]
        public int SelectedYear { get; set; }

        public List<SelectListItem> Months
        {
            get
            {
                var result = new List<SelectListItem>();

                for(var i = 1; i < 13; i++)
                {
                    result.Add(new SelectListItem
                    {
                        Value = i.ToString(), 
                        Text = new DateTime(DateTime.Now.Year, i, 1).ToString("MMMM")
                    });
                }

                return result;
            }
        }

        public List<SelectListItem> Years
        {
            get
            {
                var result = new List<SelectListItem>();

                for(var i = DateTime.Today.Year + 1; i > DateTime.Today.Year - 11; i--)
                {
                    result.Add(new SelectListItem
                    {
                        Value = i.ToString(), 
                        Text = i.ToString()
                    });
                }

                return result;
            }
        }

        public List<QuittierungsbelegItem> QuittierungsbelegItems { get; set; } = new List<QuittierungsbelegItem>();
    }
}