DragEventHandler Delegate

Definition

Namespace:

System.Windows

Assembly:

PresentationCore.dll

Represents a method that will handle drag-and-drop routed events, for example DragEnter.

public delegate void DragEventHandler(System::Object ^ sender, DragEventArgs ^ e);

public delegate void DragEventHandler(object sender, DragEventArgs e);

type DragEventHandler = delegate of obj * DragEventArgs -> unit

Public Delegate Sub DragEventHandler(sender As Object, e As DragEventArgs)

Parameters

sender

Object

The object where the event handler is attached.

e

DragEventArgs

The event data.

Remarks

This delegate is used with the following attached events.

• DragDrop.DragEnter

• DragDrop.DragLeave

• DragDrop.DragOver

• DragDrop.Drop

• DragDrop.PreviewDragEnter

• DragDrop.PreviewDragLeave

• DragDrop.PreviewDragOver

• DragDrop.PreviewDrop

This delegate is also used with the following routed events on base elements. These routed events forward the previously listed attached events to make them more accessible to the general element model in WPF.

• UIElement.DragEnter

• UIElement.DragLeave

• UIElement.DragOver

• UIElement.Drop

• UIElement.PreviewDragEnter

• UIElement.PreviewDragLeave

• UIElement.PreviewDragOver

• UIElement.PreviewDrop

• ContentElement.DragEnter

• ContentElement.DragLeave

• ContentElement.DragOver

• ContentElement.Drop

• ContentElement.PreviewDragEnter

• ContentElement.PreviewDragLeave

• ContentElement.PreviewDragOver

• ContentElement.PreviewDrop

The attached events and the base element routed events share their event data, and the bubbling and tunneling versions of the routed events also share event data. This can affect the handled characteristics of the event as it travels the event route. For details, see Input Overview.

Extension Methods