RoutedEventArgs.RoutedEvent RoutedEventArgs.RoutedEvent RoutedEventArgs.RoutedEvent RoutedEventArgs.RoutedEvent Property

定義

取得或設定與這個 RoutedEventArgs 執行個體相關聯的 RoutedEventGets or sets the RoutedEvent associated with this RoutedEventArgs instance.

public:
 property System::Windows::RoutedEvent ^ RoutedEvent { System::Windows::RoutedEvent ^ get(); void set(System::Windows::RoutedEvent ^ value); };
public System.Windows.RoutedEvent RoutedEvent { get; set; }
member this.RoutedEvent : System.Windows.RoutedEvent with get, set
Public Property RoutedEvent As RoutedEvent

屬性值

已叫用之事件的識別項。The identifier for the event that has been invoked.

例外狀況

嘗試在路由事件時變更 RoutedEvent 值。Attempted to change the RoutedEvent value while the event is being routed.

範例

下列範例會建立新的路由的事件資料的初始建構函式,並接著會設定RoutedEvent屬性做為後續的作業。The following example creates new routed event data with an initial constructor and then sets the RoutedEvent property as a subsequent operation. 您必須擁有RoutedEvent之前引發路由的事件設定。You must have RoutedEvent set prior to raising the routed event.

protected virtual void OnSelectedColorChanged(Color oldColor, Color newColor)
{

    RoutedPropertyChangedEventArgs<Color> newEventArgs =
        new RoutedPropertyChangedEventArgs<Color>(oldColor, newColor);
    newEventArgs.RoutedEvent = ColorPicker.SelectedColorChangedEvent;
    RaiseEvent(newEventArgs);
}
Protected Overridable Sub OnSelectedColorChanged(ByVal oldColor As Color, ByVal newColor As Color)

	Dim newEventArgs As New RoutedPropertyChangedEventArgs(Of Color)(oldColor, newColor)
	newEventArgs.RoutedEvent = ColorPicker.SelectedColorChangedEvent
	MyBase.RaiseEvent(newEventArgs)
End Sub

備註

您無法將此值設定在RoutedEventArgs,已傳送 (比方說,如果您取得透過處理常式的引數)。You cannot set this value on a RoutedEventArgs that has already been routed (for instance, if you obtained the arguments through a handler). 嘗試執行此作業會產生例外狀況。Attempting to do so will generate an exception. 您只可以設定它尚未使用來產生事件的引動過程的執行個體上。You can only set it on an instance that has not yet been used to generate an invocation of the event.

RoutedEvent不能是null在任何時間。The value of RoutedEvent cannot be null at any time.

適用於