mcs/class/System.Windows.Forms/System.Windows.Forms/BindingsCollection.cs

   1 //
   2 // System.Windows.Forms.BindingsCollection.cs
   3 //
   4 // Author:
   5 //   stubbed out by Jaak Simm (jaaksimm@firm.ee)
   6 //   Dennis Hayes (dennish@Raytek.com)
   7 //
   8 // (C) 2002/3 Ximian, Inc
   9 //
  10
  11 using System.Collections;
  12 using System.ComponentModel;
  13
  14 namespace System.Windows.Forms {
  15
  16         /// <summary>
  17         /// Represents a collection of Binding objects for a control.
  18         ///
  19         /// </summary>
  20
  21         public class BindingsCollection : BaseCollection {
  22
  23                 #region Constructors
  24                 protected internal BindingsCollection ()
  25                 {
  26                 }
  27                 #endregion
  28
  29                 // --- public and protected Properties ---
  30                 public override int Count {
  31                         get {
  32                                 return base.Count;
  33                         }
  34                 }
  35
  36                 public Binding this[int index] {
  37                         get {
  38                                 return (Binding)(base.List[index]);
  39                         }
  40                 }
  41
  42                 [MonoTODO]
  43                 protected override ArrayList List {
  44                         get {
  45                                 return base.List;
  46  }
  47                 }
  48
  49                 // --- public Methods ---
  50                 [MonoTODO]
  51                 protected virtual void AddCore(Binding dataBinding) {
  52                 }
  53
  54                 [MonoTODO]
  55                 protected virtual void ClearCore(){
  56                 }
  57
  58                 [MonoTODO]
  59                 protected virtual void RemoveCore(Binding dataBinding){
  60                 }
  61
  62                 //
  63                 // CollectionChanged event:
  64                 // Though it was not documented, here methods Add and Remove
  65                 // cause the CollectionChanged event to occur, similarily as Clear.
  66                 // Would be nice if someone checked the exact event behavior of .NET implementation.
  67
  68                 protected internal void Add(Binding binding)
  69                 {
  70                         base.List.Add(binding);
  71                         OnCollectionChanged(new CollectionChangeEventArgs(
  72                                 CollectionChangeAction.Add,
  73                                 base.List
  74                         ));
  75                 }
  76
  77                 protected internal void Clear()
  78                 {
  79                         base.List.Clear();
  80                         OnCollectionChanged(new CollectionChangeEventArgs(
  81                                 CollectionChangeAction.Refresh,
  82                                 base.List
  83                         ));
  84                 }
  85
  86                 protected virtual void OnCollectionChanged(CollectionChangeEventArgs ccevent)
  87                 {
  88                         if (CollectionChanged != null)
  89                                 CollectionChanged(this, ccevent);
  90                 }
  91
  92                 protected internal void Remove(Binding binding)
  93                 {
  94                         base.List.Remove(binding);
  95                         OnCollectionChanged(new CollectionChangeEventArgs(
  96                                 CollectionChangeAction.Remove,
  97                                 base.List
  98                         ));
  99                 }
 100
 101                 protected internal void RemoveAt(int index)
 102                 {
 103                         base.List.RemoveAt(index);
 104                         OnCollectionChanged(new CollectionChangeEventArgs(
 105                                 CollectionChangeAction.Remove,
 106                                 base.List
 107                         ));
 108                 }
 109
 110                 protected internal bool ShouldSerializeMyAll()
 111                 {
 112                         if (this.Count>0) return true;
 113                         else return false;
 114                 }
 115
 116                 // public events
 117                 public event CollectionChangeEventHandler CollectionChanged;
 118         }
 119 }