mcs/class/referencesource/System.Activities.Presentation/System.Activities.Presentation/System/Activities/Presentation/ExpandCollapseIsCheckedConverter.cs

   1 //----------------------------------------------------------------
   2 // Copyright (c) Microsoft Corporation.  All rights reserved.
   3 //----------------------------------------------------------------
   4
   5 namespace System.Activities.Presentation
   6 {
   7     using System.Windows.Data;
   8     using System.Windows;
   9     class ExpandCollapseIsCheckedConverter : IMultiValueConverter
  10     {
  11         public object Convert(object[] values, Type targetType, object parameter, global::System.Globalization.CultureInfo culture)
  12         {
  13             bool expandState = (bool)values[0];
  14             bool pinState = (bool)values[1];
  15             bool showExpanded = false;
  16             if (values[2] != DependencyProperty.UnsetValue)
  17             {
  18                 showExpanded = (bool)values[2];
  19             }
  20
  21             return showExpanded;
  22         }
  23
  24         public object[] ConvertBack(object value, Type[] targetTypes, object parameter, global::System.Globalization.CultureInfo culture)
  25         {
  26             //Return ExpandState and PinState.
  27             return new object[] { value, true };
  28         }
  29
  30     }
  31 }