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

   1
   2 //
   3 // Permission is hereby granted, free of charge, to any person obtaining
   4 // a copy of this software and associated documentation files (the
   5 // "Software"), to deal in the Software without restriction, including
   6 // without limitation the rights to use, copy, modify, merge, publish,
   7 // distribute, sublicense, and/or sell copies of the Software, and to
   8 // permit persons to whom the Software is furnished to do so, subject to
   9 // the following conditions:
  10 //
  11 // The above copyright notice and this permission notice shall be
  12 // included in all copies or substantial portions of the Software.
  13 //
  14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  15 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  16 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  17 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  18 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  19 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  20 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  21 //
  22 /**\r
  23  * Namespace: System.Web.UI.WebControls\r
  24  * Class:     ValidatedControlConverter\r
  25  *\r
  26  * Author:  Gaurav Vaish\r
  27  * Maintainer: gvaish@iitk.ac.in\r
  28  * Contact: <my_scripts2001@yahoo.com>, <gvaish@iitk.ac.in>\r
  29  * Implementation: yes\r
  30  * Status:  100%\r
  31  *\r
  32  * (C) Gaurav Vaish (2002)\r
  33  */\r
  34 \r
  35 using System;\r
  36 using System.ComponentModel;\r
  37 using System.Collections;\r
  38 using System.Web;\r
  39 using System.Web.UI;\r
  40 \r
  41 namespace System.Web.UI.WebControls\r
  42 {\r
  43         public class ValidatedControlConverter : StringConverter\r
  44         {\r
  45                 public ValidatedControlConverter(): base()\r
  46                 {\r
  47                 }\r
  48 \r
  49                 private object[] GetValues(IContainer container)\r
  50                 {\r
  51                         ArrayList values = new ArrayList();\r
  52                         IEnumerator ie = container.Components.GetEnumerator();\r
  53                         try\r
  54                         {\r
  55                                 foreach(IComponent current in container.Components)\r
  56                                 {\r
  57                                         Control ctrl = (Control)current;\r
  58                                         if(ctrl == null || ctrl.ID == null || ctrl.ID.Length == 0)\r
  59                                                 continue;\r
  60                                         ValidationPropertyAttribute attrib = (ValidationPropertyAttribute)((TypeDescriptor.GetAttributes(ctrl))[typeof(ValidationPropertyAttribute)]);\r
  61                                         if(attrib == null || attrib.Name == null)\r
  62                                                 continue;\r
  63                                         values.Add(String.Copy(ctrl.ID));\r
  64                                 }\r
  65                         }finally\r
  66                         {\r
  67                                 if(ie is IDisposable)\r
  68                                         ((IDisposable)ie).Dispose();\r
  69                         }\r
  70                         values.Sort();\r
  71                         return values.ToArray();\r
  72                 }\r
  73 \r
  74                 public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)\r
  75                 {\r
  76                         if(context != null && context.Container != null)\r
  77                         {\r
  78                                 object[] values = GetValues(context.Container);\r
  79                                 if(values != null)\r
  80                                 {\r
  81                                         return new StandardValuesCollection(values);\r
  82                                 }\r
  83                         }\r
  84                         return null;\r
  85                 }\r
  86 \r
  87                 public override bool GetStandardValuesExclusive(ITypeDescriptorContext context)\r
  88                 {\r
  89                         return false;\r
  90                 }\r
  91 \r
  92                 public override bool GetStandardValuesSupported(ITypeDescriptorContext context)\r
  93                 {\r
  94                         return true;\r
  95                 }\r
  96         }\r
  97 }\r