mcs/class/System.Data/System.Data/DataTablePropertyDescriptor.cs

   1 //
   2 // System.Data.DataTablePropertyDescriptor
   3 //
   4 // Authors:
   5 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   6 //
   7 // (C) 2003 Ximian, Inc (http://www.ximian.com)
   8 //
   9
  10 //
  11 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  12 //
  13 // Permission is hereby granted, free of charge, to any person obtaining
  14 // a copy of this software and associated documentation files (the
  15 // "Software"), to deal in the Software without restriction, including
  16 // without limitation the rights to use, copy, modify, merge, publish,
  17 // distribute, sublicense, and/or sell copies of the Software, and to
  18 // permit persons to whom the Software is furnished to do so, subject to
  19 // the following conditions:
  20 //
  21 // The above copyright notice and this permission notice shall be
  22 // included in all copies or substantial portions of the Software.
  23 //
  24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31 //
  32
  33 using System;
  34 using System.ComponentModel;
  35
  36 namespace System.Data
  37 {
  38         internal class DataTablePropertyDescriptor : PropertyDescriptor
  39         {
  40                 DataTable table;
  41
  42                 internal DataTablePropertyDescriptor (DataTable table) : base (table.TableName, null)
  43                 {
  44                         this.table = table;
  45                 }
  46
  47                 public DataTable Table {
  48                         get { return table; }
  49                 }
  50
  51                 public override object GetValue (object component)
  52                 {
  53                         DataViewManagerListItemTypeDescriptor desc = component as DataViewManagerListItemTypeDescriptor;
  54                         if (desc == null)
  55                                 return null;
  56
  57                         DataView dv = new DataView (table);
  58                         dv.dataViewManager = desc.DataViewManager;
  59                         return dv;
  60                 }
  61
  62                 public override bool CanResetValue (object component)
  63                 {
  64                         return false;
  65                 }
  66
  67                 public override bool Equals (object other)
  68                 {
  69                         return (other is DataTablePropertyDescriptor &&
  70                                 ((DataTablePropertyDescriptor) other).table == table);
  71                 }
  72
  73                 public override int GetHashCode ()
  74                 {
  75                         return table.GetHashCode ();
  76                 }
  77
  78                 public override bool ShouldSerializeValue (object component)
  79                 {
  80                         return false;
  81                 }
  82
  83                 public override void ResetValue (object component)
  84                 {
  85                 }
  86
  87                 public override void SetValue (object component, object value)
  88                 {
  89                 }
  90
  91                 public override bool IsReadOnly
  92                 {
  93                         get { return false; }
  94                 }
  95
  96                 public override Type ComponentType
  97                 {
  98                         get { return typeof (DataRowView); }
  99                 }
 100
 101                 public override Type PropertyType
 102                 {
 103                         get { return typeof (IBindingList); }
 104                 }
 105         }
 106 }
 107