mcs/class/Managed.Windows.Forms/System.Windows.Forms/GridItemCollection.cs

   1 // Permission is hereby granted, free of charge, to any person obtaining
   2 // a copy of this software and associated documentation files (the
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   6 // permit persons to whom the Software is furnished to do so, subject to
   7 // the following conditions:
   8 //
   9 // The above copyright notice and this permission notice shall be
  10 // included in all copies or substantial portions of the Software.
  11 //
  12 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  13 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  14 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  15 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  16 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  17 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  18 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  19 //
  20 // Copyright (c) 2004-2005 Novell, Inc.
  21 //
  22 // Authors:
  23 //      Jonathan Chambers (jonathan.chambers@ansys.com)
  24 //
  25
  26 // COMPLETE
  27
  28 using System;
  29 using System.Collections;
  30
  31 namespace System.Windows.Forms
  32 {
  33         public class GridItemCollection : IEnumerable, ICollection
  34         {
  35                 #region Local Variables
  36                 private System.Collections.SortedList list;
  37                 #endregion      // Local Variables
  38
  39                 #region Public Static Fields
  40                 public static GridItemCollection Empty = new GridItemCollection();
  41                 #endregion      // Public Static Fields
  42
  43                 #region Constructors
  44                 internal GridItemCollection()
  45                 {
  46                         list = new SortedList();
  47                 }
  48                 #endregion      // Constructors
  49
  50                 #region Internal Properties and Methods
  51                 internal void Add(string key, GridItem grid_item)
  52                 {
  53                         list.Add(key,grid_item);
  54                 }
  55
  56                 internal int IndexOf (GridItem grid_item)
  57                 {
  58                         return list.IndexOfValue (grid_item);
  59                 }
  60                 #endregion      // Internal Properties and Methods
  61
  62                 #region Public Instance Properties
  63                 public int Count
  64                 {
  65                         get {
  66                                 return list.Count;
  67                         }
  68                 }
  69
  70                 public GridItem this [int index]
  71                 {
  72                         get {
  73                                 if (index>=list.Count) {
  74                                         throw new ArgumentOutOfRangeException("index");
  75                                 }
  76                                 return (GridItem)list.GetByIndex(index);
  77                         }
  78                 }
  79
  80                 public GridItem this [string key]
  81                 {
  82                         get {
  83                                 return (GridItem)list[key];
  84                         }
  85                 }
  86                 #endregion      // Public Instance Properties
  87
  88                 #region IEnumerable Members
  89                 public IEnumerator GetEnumerator()
  90                 {
  91                         return new GridItemEnumerator(this);
  92                 }
  93                 #endregion
  94
  95                 #region Enumerator Class
  96                 internal class GridItemEnumerator : IEnumerator{
  97                         int nIndex;
  98                         GridItemCollection collection;
  99                         public GridItemEnumerator(GridItemCollection coll) {
 100                                 collection = coll;
 101                                 nIndex = -1;
 102                         }
 103
 104                         public bool MoveNext() {
 105                                 nIndex++;
 106                                 return(nIndex < collection.Count);
 107                         }
 108
 109                         public void Reset() {
 110                                 nIndex = -1;
 111                         }
 112
 113                         object System.Collections.IEnumerator.Current {
 114                                 get {
 115                                         return(collection[nIndex]);
 116                                 }
 117                         }
 118                 }
 119                 #endregion
 120
 121                 #region ICollection Members
 122
 123                 bool ICollection.IsSynchronized
 124                 {
 125                         get
 126                         {
 127                                 return list.IsSynchronized;
 128                         }
 129                 }
 130
 131                 void ICollection.CopyTo(Array array, int index)
 132                 {
 133                         list.CopyTo(array, index);
 134                 }
 135
 136                 object ICollection.SyncRoot
 137                 {
 138                         get
 139                         {
 140                                 return list.SyncRoot;
 141                         }
 142                 }
 143
 144                 #endregion
 145         }
 146 }