src/Tizen.NUI/src/internal/XamlBinding/Interactivity/DataTrigger.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using Tizen.NUI.Xaml;
   4
   5 namespace Tizen.NUI.Binding
   6 {
   7     [ContentProperty("Setters")]
   8     [ProvideCompiled("Tizen.NUI.Xaml.Core.XamlC.PassthroughValueProvider")]
   9     [AcceptEmptyServiceProvider]
  10     internal sealed class DataTrigger : TriggerBase, IValueProvider
  11     {
  12         public DataTrigger([TypeConverter(typeof(TypeTypeConverter))] [Parameter("TargetType")] Type targetType) : base(new BindingCondition(), targetType)
  13         {
  14         }
  15
  16         public BindingBase Binding
  17         {
  18             get { return ((BindingCondition)Condition).Binding; }
  19             set
  20             {
  21                 if (((BindingCondition)Condition).Binding == value)
  22                     return;
  23                 if (IsSealed)
  24                     throw new InvalidOperationException("Can not change Binding once the Trigger has been applied.");
  25                 OnPropertyChanging();
  26                 ((BindingCondition)Condition).Binding = value;
  27                 OnPropertyChanged();
  28             }
  29         }
  30
  31         public new IList<Setter> Setters
  32         {
  33             get { return base.Setters; }
  34         }
  35
  36         public object Value
  37         {
  38             get { return ((BindingCondition)Condition).Value; }
  39             set
  40             {
  41                 if (((BindingCondition)Condition).Value == value)
  42                     return;
  43                 if (IsSealed)
  44                     throw new InvalidOperationException("Can not change Value once the Trigger has been applied.");
  45                 OnPropertyChanging();
  46                 ((BindingCondition)Condition).Value = value;
  47                 OnPropertyChanged();
  48             }
  49         }
  50
  51         object IValueProvider.ProvideValue(IServiceProvider serviceProvider)
  52         {
  53             //This is no longer required
  54             return this;
  55         }
  56     }
  57 }