DragStartedEventHandler Delegate

Represents the method that will handle the DragStarted event of a Thumb.

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


Public Delegate Sub DragStartedEventHandler ( _
    sender As Object, _
    e As DragStartedEventArgs _
public delegate void DragStartedEventHandler(
    Object sender,
    DragStartedEventArgs e


  • sender
    Type: System.Object
    The object where the event handler is attached.


When you create a DragStartedEventHandler delegate, you identify the method that will handle the event. To associate the event with your event handler, add an instance of the delegate to the event. The event handler is called whenever the event occurs, unless you remove the delegate. For more information about event-handler delegates, see Events Overview for Silverlight.

You can also use the DragStartedEventHandler delegate combined with the DragStartedEventArgs class to provide drag started event data for custom controls that have drag events.

Version Information


Supported in: 5, 4, 3

Silverlight for Windows Phone

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


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