Control.OnDragOver Method

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

Called before the DragOver event occurs.

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


Protected Overridable Sub OnDragOver ( _
    e As DragEventArgs _
protected virtual void OnDragOver(
    DragEventArgs e



The OnDragOver method is called before any event handler for the DragOver event is called. This method allows derived classes to handle the DragOver event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

This implementation does not change the handled state (the Handled property) of the DragOver event data.

Notes to Inheritors

When overriding OnDragOver in a derived class, be sure to call the base class’s OnDragOver method so that registered delegates receive the event.

Version Information


Supported in: 5, 4

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1


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