mcs/class/referencesource/System.Activities.Presentation/System.Activities.Presentation/System/Activities/Presentation/View/FilterableData.cs

   1 //----------------------------------------------------------------
   2 // Copyright (c) Microsoft Corporation.  All rights reserved.
   3 //----------------------------------------------------------------
   4
   5 namespace System.Activities.Presentation.View
   6 {
   7     using System.Windows;
   8     using System.Globalization;
   9     using System.Runtime;
  10
  11     class FilterableData : DependencyObject
  12     {
  13         public static readonly DependencyProperty DataProperty =
  14             DependencyProperty.Register("Data", typeof(object), typeof(FilterableData), new UIPropertyMetadata(null));
  15
  16         public static readonly DependencyProperty IsSelectedProperty =
  17             DependencyProperty.Register("IsSelected", typeof(bool), typeof(FilterableData), new UIPropertyMetadata(false));
  18
  19         public static readonly DependencyProperty VisibilityProperty =
  20             DependencyProperty.Register("Visibility", typeof(Visibility), typeof(FilterableData), new UIPropertyMetadata(Visibility.Visible));
  21
  22         public object Data
  23         {
  24             get { return (object)GetValue(DataProperty); }
  25             set { SetValue(DataProperty, value); }
  26         }
  27
  28         public bool IsSelected
  29         {
  30             get { return (bool)GetValue(IsSelectedProperty); }
  31             set { SetValue(IsSelectedProperty, value); }
  32         }
  33
  34         public Visibility Visibility
  35         {
  36             get { return (Visibility)GetValue(VisibilityProperty); }
  37             set { SetValue(VisibilityProperty, value); }
  38         }
  39
  40         internal object Owner
  41         {
  42             get;
  43             set;
  44         }
  45
  46         public override string ToString()
  47         {
  48             return null == this.Data ? "<null>" : this.Data.ToString();
  49         }
  50     }
  51
  52     class FilterableData<TData> : FilterableData
  53     {
  54         [Fx.Tag.KnownXamlExternal]
  55         public TData TypedData
  56         {
  57             get { return (TData)base.Data; }
  58             set { base.Data = value; }
  59         }
  60
  61         public override string ToString()
  62         {
  63             return string.Format(CultureInfo.CurrentUICulture, "{0}:({1})", base.ToString(), typeof(TData).Name);
  64         }
  65     }
  66 }