WPF MultiDataTrigger不工作

所以我有多邊形：WPF MultiDataTrigger不工作

<Polygon Points="1.875,0.875 2.75,13.875 18.875,11 16.625,-3.375 1.875,0.875 " 
      Style="{ StaticResource BlockView}" 
      Name="KEY_1" 
      Canvas.Left="35" 
      Canvas.Top="211" 
      attachedproperty:UtilityFunctions.IsDualModeActive="{Binding GetDevice.SelectedProfile.IsDualMode,Mode=TwoWay}" />

我想多邊形的行程來改變基於IsMouseOver屬性的值和一個附加的屬性，它是這樣的：

public static readonly DependencyProperty IsDualModeActiveProperty = DependencyProperty.RegisterAttached(
                     "IsDualModeActive", 
                     typeof(Boolean), 
                     typeof(UtilityFunctions) 
     ); 
    public static void SetIsDualModeActive(UIElement element, Boolean value) 
    { 
     element.SetValue(IsDualModeActiveProperty, value); 
    } 
    public static Boolean GetIsDualModeActive(UIElement element) 
    { 
     return (Boolean)element.GetValue(IsDualModeActiveProperty); 
    }

附加的屬性綁定到我的ViewModel屬性，你可以在多邊形代碼中看到。然後，我有這個觸發器在樣式資源定義：

<MultiDataTrigger> 
        <MultiDataTrigger.Conditions> 
         <Condition Binding="{Binding RelativeSource={RelativeSource Self}, Path=IsMouseOver }" 
            Value="True" /> 
         <Condition Binding="{Binding RelativeSource={RelativeSource Self}, Path=IsDualModeActive }" 
            Value="False" /> 
        </MultiDataTrigger.Conditions> 
        <MultiDataTrigger.EnterActions> 
         <BeginStoryboard> 
          <Storyboard> 
           <ColorAnimation Storyboard.TargetProperty="Stroke.Color" 
               To="#73BB00" 
               Duration="{StaticResource controlTransitionEnterDuration}" /> 
          </Storyboard> 
         </BeginStoryboard> 
        </MultiDataTrigger.EnterActions> 
        <MultiDataTrigger.ExitActions> 
         <BeginStoryboard> 
          <Storyboard> 
           <ColorAnimation Storyboard.TargetProperty="Stroke.Color" 
               Duration="{StaticResource controlTransitionEnterDuration}" /> 
          </Storyboard> 
         </BeginStoryboard> 
        </MultiDataTrigger.ExitActions> 
        <Setter Property="Opacity" Value="3" /> 
       </MultiDataTrigger>

問題是我已經檢查鼠標懸停和attachedproperty的值，它們滿足觸發條件，但多邊形的行程不會改變。我錯過了這裏的任何事情？謝謝。

來源

2016-07-30 Sameed

當您使用屬性路徑指定一個附加屬性，還必須指定它在使用括號語法定義的類型：

<Condition Binding="{Binding RelativeSource={RelativeSource Self}, 
    Path=(attachedproperty:UtilityFunctions.IsDualModeActive)}" Value="False" />

來源

2016-07-30 16:03:04

WPF MultiDataTrigger不工作

回答

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