mcs/class/System.Web/System.Web.UI.WebControls/ControlIDConverter.cs

   1 //
   2 // System.Web.UI.WebControls.ControlIDConverter.cs
   3 //
   4 // Authors:
   5 //      Sanjay Gupta (gsanjay@novell.com)
   6 //
   7 // (C) 2004 Novell, Inc (http://www.novell.com)
   8 //
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30
  31 #if NET_2_0
  32 using System;
  33 using System.ComponentModel;
  34 using System.Collections;
  35
  36 namespace System.Web.UI.WebControls
  37 {
  38         public class ControlIDConverter : StringConverter
  39
  40         {
  41                 public ControlIDConverter ()
  42                 { }
  43
  44                 protected virtual bool FilterControl (Control control)
  45                 {
  46                         return true;
  47                 }
  48
  49                 /*public ICollection GetStandardValues ()
  50                 {
  51                         return null;
  52                 }*/
  53
  54                 public override TypeConverter.StandardValuesCollection GetStandardValues
  55                                                         (ITypeDescriptorContext context)
  56                 {
  57                         if (context == null)
  58                                 return null;
  59
  60                         IContainer container = context.Container;
  61
  62                         if (container == null)
  63                                 return null;
  64
  65                         ComponentCollection ctrlCollection = container.Components;
  66                         ArrayList arrayList = new ArrayList (0);
  67
  68                         foreach (Control control in ctrlCollection) {
  69                                 if (FilterControl(control))
  70                                         arrayList.Add (control.ID);
  71                         }
  72                         return new StandardValuesCollection (arrayList);
  73                 }
  74
  75                 /*public bool GetStandardValuesExclusive ()
  76                 {
  77                         return false;
  78                 }*/
  79
  80                 public override bool GetStandardValuesExclusive
  81                                         (ITypeDescriptorContext context)
  82                 {
  83                         return false;
  84                 }
  85
  86                 /*public bool GetStandardValuesSupported ()
  87                 {
  88                         return false;
  89                 }*/
  90
  91                 public override bool GetStandardValuesSupported (ITypeDescriptorContext context)
  92                 {
  93                         if (context == null)
  94                                 return false;
  95
  96                         return true;
  97                 }
  98         }
  99 }
 100 #endif
 101