ListView.OnItemMouseHover(ListViewItemMouseHoverEventArgs) Method

Definition

引发 ItemMouseHover 事件。Raises the ItemMouseHover event.

protected:
 virtual void OnItemMouseHover(System::Windows::Forms::ListViewItemMouseHoverEventArgs ^ e);
protected virtual void OnItemMouseHover (System.Windows.Forms.ListViewItemMouseHoverEventArgs e);
abstract member OnItemMouseHover : System.Windows.Forms.ListViewItemMouseHoverEventArgs -> unit
override this.OnItemMouseHover : System.Windows.Forms.ListViewItemMouseHoverEventArgs -> unit
Protected Overridable Sub OnItemMouseHover (e As ListViewItemMouseHoverEventArgs)

Parameters

e
ListViewItemMouseHoverEventArgs

一个包含事件数据的 ListViewItemMouseHoverEventArgsA ListViewItemMouseHoverEventArgs that contains the event data.

Remarks

引发事件时,将通过委托调用事件处理程序。Raising an event invokes the event handler through a delegate. 有关详细信息,请参阅处理和引发事件For more information, see Handling and Raising Events.

OnItemMouseHover 方法还允许派生类对事件进行处理而不必附加委托。The OnItemMouseHover method also allows derived classes to handle the event without attaching a delegate. 这是在派生类中处理事件的首选技术。This is the preferred technique for handling the event in a derived class.

Notes to Inheritors

在派生类中重写 OnItemMouseHover(ListViewItemMouseHoverEventArgs) 时,一定要调用基类的 OnItemMouseHover(ListViewItemMouseHoverEventArgs) 方法,以便已注册的委托对事件进行接收。When overriding OnItemMouseHover(ListViewItemMouseHoverEventArgs) in a derived class, be sure to call the base class's OnItemMouseHover(ListViewItemMouseHoverEventArgs) method so that registered delegates receive the event.

Applies to