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

   1 //
   2 // System.Web.UI.DataBinding.cs
   3 //
   4 // Authors:
   5 //      Duncan Mak  (duncan@ximian.com)
   6 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   7 //
   8 // (C) 2002 Ximian, Inc. (http://www.ximian.com)
   9 // Copyright (C) 2005 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         public sealed class DataBinding
  38         {
  39                 string propertyName;
  40                 Type propertyType;
  41                 string expression;
  42
  43                 public DataBinding (string propertyName, Type propertyType,
  44                                     string expression)
  45                 {
  46                         this.propertyName = propertyName;
  47                         this.propertyType = propertyType;
  48                         this.expression = expression;
  49                 }
  50
  51                 public string Expression {
  52                         get { return expression; }
  53                         set { expression = value; }
  54                 }
  55
  56                 public string PropertyName {
  57                         get { return propertyName; }
  58                 }
  59
  60                 public Type PropertyType {
  61                         get { return propertyType; }
  62                 }
  63
  64                 public override bool Equals (object obj)
  65                 {
  66                         DataBinding o = (obj as DataBinding);
  67                         if (o == null)
  68                                 return false;
  69
  70                         return (o.Expression == expression &&
  71                                 o.PropertyName == propertyName &&
  72                                 o.PropertyType == propertyType);
  73                 }
  74
  75                 public override int GetHashCode ()
  76                 {
  77                         return propertyName.GetHashCode () +
  78                                (propertyType.GetHashCode () << 1) +
  79                                (expression.GetHashCode () << 2) ;
  80                 }
  81         }
  82 }