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 //
  10
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System;
  33
  34 namespace System.Web.UI {
  35
  36         public sealed class DataBinding
  37         {
  38                 string propertyName;
  39                 Type propertyType;
  40                 string expression;
  41
  42                 public DataBinding (string propertyName, Type propertyType,
  43                                     string expression)
  44                 {
  45                         this.propertyName = propertyName;
  46                         this.propertyType = propertyType;
  47                         this.expression = expression;
  48                 }
  49
  50                 public string Expression {
  51                         get { return expression; }
  52                         set { expression = value; }
  53                 }
  54
  55                 public string PropertyName {
  56                         get { return propertyName; }
  57                 }
  58
  59                 public Type PropertyType {
  60                         get { return propertyType; }
  61                 }
  62
  63                 public override bool Equals (object obj)
  64                 {
  65                         if (!(obj is DataBinding))
  66                                 return false;
  67
  68                         DataBinding o = (DataBinding) obj;
  69                         return (o.Expression == expression &&
  70                                 o.PropertyName == propertyName &&
  71                                 o.PropertyType == propertyType);
  72                 }
  73
  74                 public override int GetHashCode ()
  75                 {
  76                         return propertyName.GetHashCode () +
  77                                (propertyType.GetHashCode () << 1) +
  78                                (expression.GetHashCode () << 2) ;
  79                 }
  80         }
  81 }