mcs/class/referencesource/System.Activities.Presentation/System.Activities.Presentation/System/Activities/Presentation/Base/Core/Internal/PropertyEditing/FromExpression/Framework/Data/ObservableCollection.cs

   1 // -------------------------------------------------------------------
   2 // Copyright (c) Microsoft Corporation. All Rights Reserved.
   3 // -------------------------------------------------------------------
   4 //From \\authoring\Sparkle\Source\1.0.1083.0\Common\Source\Framework\Data
   5 namespace System.Activities.Presentation.Internal.PropertyEditing.FromExpression.Framework.Data
   6 {
   7     using System;
   8     using System.Collections;
   9     using System.Collections.Generic;
  10     using System.Collections.ObjectModel;
  11     using System.Collections.Specialized;
  12     using System.ComponentModel;
  13     using System.Windows;
  14
  15     // <summary>
  16     // Workaround for ObservableCollection not supporting IComparers.  The implementation was copied from ObservableCollection.
  17     // </summary>
  18     // <typeparam name="T"></typeparam>
  19     internal sealed class ObservableCollectionWorkaround<T> : ObservableCollection<T>
  20     {
  21         public ObservableCollectionWorkaround()
  22         {
  23         }
  24
  25         public ObservableCollectionWorkaround(List<T> list)
  26             : base(list)
  27         {
  28         }
  29
  30         public ObservableCollectionWorkaround(ICollection collection)
  31         {
  32             foreach (T item in collection)
  33             {
  34                 this.Add(item);
  35             }
  36         }
  37
  38         public int BinarySearch(T value, IComparer<T> comparer)
  39         {
  40             return ((List<T>)base.Items).BinarySearch(value, comparer);
  41         }
  42
  43         public void Sort()
  44         {
  45             ((List<T>)base.Items).Sort();
  46             this.OnPropertyChanged(new PropertyChangedEventArgs("Item[]"));
  47             this.OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset, null, -1));
  48         }
  49
  50         public void Sort(IComparer<T> comparer)
  51         {
  52             ((List<T>)base.Items).Sort(comparer);
  53             this.OnPropertyChanged(new PropertyChangedEventArgs("Item[]"));
  54             this.OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset, null, -1));
  55         }
  56
  57         public void Sort(Comparison<T> comparison)
  58         {
  59             ((List<T>)base.Items).Sort(comparison);
  60             this.OnPropertyChanged(new PropertyChangedEventArgs("Item[]"));
  61             this.OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset, null, -1));
  62         }
  63
  64         public void Reverse()
  65         {
  66             ((List<T>)base.Items).Reverse();
  67         }
  68
  69     }
  70 }