DragDrop.AddDragEnterHandler(DependencyObject, DragEventHandler) 方法

定义

DragEnter 事件处理程序添加到指定的依赖对象。Adds a DragEnter event handler to a specified dependency object.

public:
 static void AddDragEnterHandler(System::Windows::DependencyObject ^ element, System::Windows::DragEventHandler ^ handler);
public static void AddDragEnterHandler (System.Windows.DependencyObject element, System.Windows.DragEventHandler handler);
static member AddDragEnterHandler : System.Windows.DependencyObject * System.Windows.DragEventHandler -> unit
Public Shared Sub AddDragEnterHandler (element As DependencyObject, handler As DragEventHandler)

参数

element
DependencyObject

要对其添加事件处理程序的依赖对象(UIElementContentElement)。The dependency object (a UIElement or ContentElement) to which to add the event handler.

handler
DragEventHandler

一个委托,用于引用要添加的处理程序方法。A delegate that references the handler method to be added.

注解

将对象拖入元素的边界时发生 @no__t 0 事件。The DragEnter event occurs when an object is dragged into the element's bounds.

此方法为 @no__t 0 事件的冒泡版本添加处理程序。This method adds a handler for the bubbling version of the DragEnter event. 若要为此事件的隧道版本添加处理程序,请参阅 AddPreviewDragEnterHandlerTo add a handler for the tunneling version of this event, see AddPreviewDragEnterHandler.

适用于

另请参阅