DragDrop.AddDragOverHandler(DependencyObject, DragEventHandler) 方法

定义

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

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

DragOver 对象拖动到元素的边界上时发生此事件。The DragOver event occurs when an object is dragged over the element's bounds.

此方法为事件的冒泡版本添加处理程序 DragOverThis method adds a handler for the bubbling version of the DragOver event. 若要为此事件的隧道版本添加处理程序,请参阅 AddPreviewDragOverHandlerTo add a handler for the tunneling version of this event, see AddPreviewDragOverHandler.

适用于

另请参阅