mcs/class/referencesource/System.Activities.Presentation/System.Activities.Presentation/System/Activities/Presentation/Base/Core/Internal/PropertyEditing/FromExpression/Framework/Data/EqualsConverter.cs

   1 // -------------------------------------------------------------------
   2 // Copyright (c) Microsoft Corporation. All Rights Reserved.
   3 // -------------------------------------------------------------------
   4 //From \\authoring\Sparkle\Source\1.0.1083.0\Common\Source\Framework\Data
   5 namespace System.Activities.Presentation.Internal.PropertyEditing.FromExpression.Framework.Data
   6 {
   7     using System;
   8     using System.Globalization;
   9     using System.Windows;
  10     using System.Windows.Data;
  11     using System.Activities.Presentation;
  12
  13     internal class EqualsConverter : DependencyObject, IValueConverter
  14     {
  15         private object defaultValue = false, matchValue = true;
  16
  17         // IValueConverter Members
  18         public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
  19         {
  20             if (Object.Equals(value, parameter))
  21             {
  22                 return this.matchValue;
  23             }
  24             else
  25             {
  26                 return this.defaultValue;
  27             }
  28         }
  29
  30         public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
  31         {
  32             throw FxTrace.Exception.AsError(new InvalidOperationException());
  33         }
  34     }
  35 }