mcs/class/System.Web/System.Web.UI/ParseChildrenAttribute.cs

   1 //
   2 // System.Web.UI.ParseChildrenAttribute.cs
   3 //
   4 // Authors:
   5 //      Duncan Mak  (duncan@ximian.com)
   6 //      Gonzalo Paniagua (gonzalo@ximian.com)
   7 //
   8 // (C) 2002 Ximian, Inc. (http://www.ximian.com
   9 // Copyright (C) 2005-2010 Novell, Inc (http://www.novell.com)
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System.Security.Permissions;
  32
  33 namespace System.Web.UI {
  34
  35         // CAS - no InheritanceDemand here as the class is sealed
  36         [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  37         // attributes
  38         [AttributeUsage (AttributeTargets.Class)]
  39         public sealed class ParseChildrenAttribute : Attribute
  40         {
  41                 bool childrenAsProperties;
  42                 string defaultProperty;
  43                 public static readonly ParseChildrenAttribute Default = new ParseChildrenAttribute ();
  44                 public static readonly ParseChildrenAttribute ParseAsChildren = new ParseChildrenAttribute (false);
  45                 public static readonly ParseChildrenAttribute ParseAsProperties = new ParseChildrenAttribute (true);
  46
  47                 Type childType = typeof(System.Web.UI.Control);
  48
  49                 // LAMESPEC
  50                 public ParseChildrenAttribute ()
  51                 {
  52                         childrenAsProperties = false;
  53                         defaultProperty = "";
  54                 }
  55
  56                 public ParseChildrenAttribute (bool childrenAsProperties)
  57                 {
  58                         this.childrenAsProperties = childrenAsProperties;
  59                         this.defaultProperty = "";
  60                 }
  61
  62                 public ParseChildrenAttribute (bool childrenAsProperties,
  63                                                string defaultProperty)
  64                 {
  65                         this.childrenAsProperties = childrenAsProperties;
  66                         if (childrenAsProperties)
  67                                 this.defaultProperty = defaultProperty;
  68                 }
  69
  70                 public ParseChildrenAttribute (Type childControlType)
  71                 {
  72                         childType = childControlType;
  73                         defaultProperty = "";
  74                 }
  75
  76                 public bool ChildrenAsProperties {
  77
  78                         get { return childrenAsProperties; }
  79
  80                         set { childrenAsProperties = value; }
  81                 }
  82
  83                 public string DefaultProperty {
  84                         get { return defaultProperty; }
  85
  86                         set { defaultProperty = value; }
  87                 }
  88
  89                 public Type ChildControlType {
  90                         get { return childType; }
  91                 }
  92
  93                 public override bool Equals (object obj)
  94                 {
  95                         ParseChildrenAttribute o = (obj as ParseChildrenAttribute);
  96                         if (o == null)
  97                                 return false;
  98
  99                         if (childrenAsProperties == o.childrenAsProperties){
 100                                 if (childrenAsProperties == false)
 101                                         return true;
 102                                 return (defaultProperty == o.DefaultProperty);
 103                         }
 104                         return false;
 105                 }
 106
 107                 public override int GetHashCode ()
 108                 {
 109                         return base.GetHashCode ();
 110                 }
 111
 112                 public override bool IsDefaultAttribute ()
 113                 {
 114                         return Equals (Default);
 115                 }
 116         }
 117 }