mcs/class/System.Windows.Forms/Gtk/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                 // following internal methods are (will) not be stubbed out:
  51                 [MonoTODO]
  52                 protected virtual void AddCore(Binding dataBinding) {
  53                 }
  54
  55                 [MonoTODO]
  56                 protected virtual void ClearCore(){
  57                 }
  58
  59                 [MonoTODO]
  60                 protected virtual void RemoveCore(Binding dataBinding){
  61                 }
  62
  63                 //
  64                 // CollectionChanged event:
  65                 // Though it was not documented, here methods Add and Remove
  66                 // cause the CollectionChanged event to occur, similarily as Clear.
  67                 // Would be nice if someone checked the exact event behavior of .NET implementation.
  68
  69                 protected internal void Add(Binding binding)
  70                 {
  71                         base.List.Add(binding);
  72                         OnCollectionChanged(new CollectionChangeEventArgs(
  73                                 CollectionChangeAction.Add,
  74                                 base.List
  75                         ));
  76                 }
  77
  78                 protected internal void Clear()
  79                 {
  80                         base.List.Clear();
  81                         OnCollectionChanged(new CollectionChangeEventArgs(
  82                                 CollectionChangeAction.Refresh,
  83                                 base.List
  84                         ));
  85                 }
  86
  87                 protected virtual void OnCollectionChanged(CollectionChangeEventArgs ccevent)
  88                 {
  89                         if (CollectionChanged != null)
  90                                 CollectionChanged(this, ccevent);
  91                 }
  92
  93                 protected internal void Remove(Binding binding)
  94                 {
  95                         base.List.Remove(binding);
  96                         OnCollectionChanged(new CollectionChangeEventArgs(
  97                                 CollectionChangeAction.Remove,
  98                                 base.List
  99                         ));
 100                 }
 101
 102                 protected internal void RemoveAt(int index)
 103                 {
 104                         base.List.RemoveAt(index);
 105                         OnCollectionChanged(new CollectionChangeEventArgs(
 106                                 CollectionChangeAction.Remove,
 107                                 base.List
 108                         ));
 109                 }
 110
 111                 protected internal bool ShouldSerializeMyAll()
 112                 {
 113                         if (this.Count>0) return true;
 114                         else return false;
 115                 }
 116
 117                 // public events
 118                 public event CollectionChangeEventHandler CollectionChanged;
 119         }
 120 }