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 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System.Collections;
  33 using System.ComponentModel;
  34
  35 namespace System.Windows.Forms {
  36
  37         /// <summary>
  38         /// Represents a collection of Binding objects for a control.
  39         ///
  40         /// </summary>
  41
  42         public class BindingsCollection : BaseCollection {
  43
  44                 #region Constructors
  45                 protected internal BindingsCollection ()
  46                 {
  47                 }
  48                 #endregion
  49
  50                 // --- public and protected Properties ---
  51                 public override int Count {
  52                         get {
  53                                 return base.Count;
  54                         }
  55                 }
  56
  57                 public Binding this[int index] {
  58                         get {
  59                                 return (Binding)(base.List[index]);
  60                         }
  61                 }
  62
  63                 [MonoTODO]
  64                 protected override ArrayList List {
  65                         get {
  66                                 return base.List;
  67  }
  68                 }
  69
  70                 // --- public Methods ---
  71                 [MonoTODO]
  72                 protected virtual void AddCore(Binding dataBinding) {
  73                 }
  74
  75                 [MonoTODO]
  76                 protected virtual void ClearCore(){
  77                 }
  78
  79                 [MonoTODO]
  80                 protected virtual void RemoveCore(Binding dataBinding){
  81                 }
  82
  83                 //
  84                 // CollectionChanged event:
  85                 // Though it was not documented, here methods Add and Remove
  86                 // cause the CollectionChanged event to occur, similarily as Clear.
  87                 // Would be nice if someone checked the exact event behavior of .NET implementation.
  88
  89                 protected internal void Add(Binding binding)
  90                 {
  91                         base.List.Add(binding);
  92                         OnCollectionChanged(new CollectionChangeEventArgs(
  93                                 CollectionChangeAction.Add,
  94                                 base.List
  95                         ));
  96                 }
  97
  98                 protected internal void Clear()
  99                 {
 100                         base.List.Clear();
 101                         OnCollectionChanged(new CollectionChangeEventArgs(
 102                                 CollectionChangeAction.Refresh,
 103                                 base.List
 104                         ));
 105                 }
 106
 107                 protected virtual void OnCollectionChanged(CollectionChangeEventArgs ccevent)
 108                 {
 109                         if (CollectionChanged != null)
 110                                 CollectionChanged(this, ccevent);
 111                 }
 112
 113                 protected internal void Remove(Binding binding)
 114                 {
 115                         base.List.Remove(binding);
 116                         OnCollectionChanged(new CollectionChangeEventArgs(
 117                                 CollectionChangeAction.Remove,
 118                                 base.List
 119                         ));
 120                 }
 121
 122                 protected internal void RemoveAt(int index)
 123                 {
 124                         base.List.RemoveAt(index);
 125                         OnCollectionChanged(new CollectionChangeEventArgs(
 126                                 CollectionChangeAction.Remove,
 127                                 base.List
 128                         ));
 129                 }
 130
 131                 protected internal bool ShouldSerializeMyAll()
 132                 {
 133                         if (this.Count>0) return true;
 134                         else return false;
 135                 }
 136
 137                 // public events
 138                 public event CollectionChangeEventHandler CollectionChanged;
 139         }
 140 }