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

   1 /**\r
   2  * Namespace: System.Web.UI.WebControls\r
   3  * Class:     ValidatedControlConverter\r
   4  *\r
   5  * Author:  Gaurav Vaish\r
   6  * Maintainer: gvaish@iitk.ac.in\r
   7  * Contact: <my_scripts2001@yahoo.com>, <gvaish@iitk.ac.in>\r
   8  * Implementation: yes\r
   9  * Status:  100%\r
  10  *\r
  11  * (C) Gaurav Vaish (2002)\r
  12  */\r
  13 \r
  14 using System;\r
  15 using System.ComponentModel;\r
  16 using System.Collections;\r
  17 using System.Web;\r
  18 using System.Web.UI;\r
  19 \r
  20 namespace System.Web.UI.WebControls\r
  21 {\r
  22         public class ValidatedControlConverter : StringConverter\r
  23         {\r
  24                 public ValidatedControlConverter(): base()\r
  25                 {\r
  26                 }\r
  27 \r
  28                 private object[] GetValues(IContainer container)\r
  29                 {\r
  30                         ArrayList values = new ArrayList();\r
  31                         IEnumerator ie = container.Components.GetEnumerator();\r
  32                         try\r
  33                         {\r
  34                                 foreach(IComponent current in container.Components)\r
  35                                 {\r
  36                                         Control ctrl = (Control)current;\r
  37                                         if(ctrl == null || ctrl.ID == null || ctrl.ID.Length == 0)\r
  38                                                 continue;\r
  39                                         ValidationPropertyAttribute attrib = (ValidationPropertyAttribute)((TypeDescriptor.GetAttributes(ctrl))[typeof(ValidationPropertyAttribute)]);\r
  40                                         if(attrib == null || attrib.Name == null)\r
  41                                                 continue;\r
  42                                         values.Add(String.Copy(ctrl.ID));\r
  43                                 }\r
  44                         }finally\r
  45                         {\r
  46                                 if(ie is IDisposable)\r
  47                                         ((IDisposable)ie).Dispose();\r
  48                         }\r
  49                         values.Sort();\r
  50                         return values.ToArray();\r
  51                 }\r
  52 \r
  53                 public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)\r
  54                 {\r
  55                         if(context != null && context.Container != null)\r
  56                         {\r
  57                                 object[] values = GetValues(context.Container);\r
  58                                 if(values != null)\r
  59                                 {\r
  60                                         return new StandardValuesCollection(values);\r
  61                                 }\r
  62                         }\r
  63                         return null;\r
  64                 }\r
  65 \r
  66                 public override bool GetStandardValuesExclusive(ITypeDescriptorContext context)\r
  67                 {\r
  68                         return false;\r
  69                 }\r
  70 \r
  71                 public override bool GetStandardValuesSupported(ITypeDescriptorContext context)\r
  72                 {\r
  73                         return true;\r
  74                 }\r
  75         }\r
  76 }\r