Статья
11/18/2011

RoutedEvent Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Represents a routed event to the Silverlight event system.

Inheritance Hierarchy

System.Object
System.Windows.RoutedEvent

Namespace: System.Windows
Assembly: System.Windows (in System.Windows.dll)

Syntax

'Declaration
Public NotInheritable Class RoutedEvent

public sealed class RoutedEvent

The RoutedEvent type exposes the following members.

Methods

	Name	Description
	Equals(Object)	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns the string representation of the routed event. (Overrides Object.ToString().)

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Remarks

In WPF, the RoutedEvent class holds additional information, such as the routing strategy. In Silverlight 5, a routed event does not require this information. Only the bubbling route event routing technique is supported in Silverlight 5, and the event identifiers are not required for trigger usages because trigger usages are limited to the Loaded case. Therefore, in Silverlight 5 a routed event is generally identified by name in XAML usages, which does not require the identifier field.

The primary usage of the RoutedEvent class in Silverlight 5 is to support an event handling technique whereby you can invoke handlers on routed events even if the Handled property of event data is true. This situation exists because control class implementations might handle input events as part of their logic. Specific instances of controls might still want to handle such events in uncommon scenarios. To use this technique, you call the UIElement.AddHandler method on the control instance, declaring handledEventsToo as true, and providing the static RoutedEvent identifier of the relevant event as the routedEvent parameter. This entails that only events where a RoutedEvent identifier exists in the class definition can be used in this way. For more information, see UIElement.AddHandler or Events Overview for Silverlight.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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