ToolStripItem.DoubleClick 事件


当用鼠标双击项时发生。Occurs when the item is double-clicked with the mouse.

 event EventHandler ^ DoubleClick;
public event EventHandler DoubleClick;
member this.DoubleClick : EventHandler 
Public Custom Event DoubleClick As EventHandler 


下面的代码示例演示如何使用此成员。The following code example demonstrates the use of this member. 在此示例中,事件处理程序报告 DoubleClick 事件的发生。In the example, an event handler reports on the occurrence of the DoubleClick event. 此报表可帮助你了解何时发生事件,并可帮助你进行调试。This report helps you to learn when the event occurs and can assist you in debugging. 若要报告多个事件或频繁发生的事件,请考虑将 MessageBox.Show 替换为 Console.WriteLine 或将消息附加到多行 TextBox中。To report on multiple events or on events that occur frequently, consider replacing MessageBox.Show with Console.WriteLine or appending the message to a multiline TextBox.

若要运行示例代码,请将其粘贴到一个项目中,该项目包含继承自 ToolStripItem的类型的实例,如 ToolStripButtonToolStripMenuItemTo run the example code, paste it into a project that contains an instance of a type that inherits from ToolStripItem, such as a ToolStripButton or ToolStripMenuItem. 然后,将该实例命名为 ToolStripItem1 并确保事件处理程序与 DoubleClick 事件关联。Then name the instance ToolStripItem1 and ensure that the event handler is associated with the DoubleClick event.

private void ToolStripItem1_DoubleClick(Object sender, EventArgs e) {

   MessageBox.Show("You are in the ToolStripItem.DoubleClick event.");
Private Sub ToolStripItem1_DoubleClick(sender as Object, e as EventArgs) _ 
     Handles ToolStripItem1.DoubleClick

   MessageBox.Show("You are in the ToolStripItem.DoubleClick event.")

End Sub


双击由用户操作系统的鼠标设置确定。A double-click is determined by the mouse settings of the user's operating system. 用户可以设置两次单击鼠标按钮之间的时间以便将这两次单击认为是双击而不是两次单击。The user can set the time between clicks of a mouse button that should be considered a double-click rather than two clicks. 每次双击控件时都会引发 Click 事件。The Click event is raised every time a control is double-clicked. 例如,如果有两个事件处理程序用于 ClickDoubleClick Form的事件,则在双击窗体并调用这两个方法时,将引发 ClickDoubleClick 事件。For example, if you have two event handlers for the Click and DoubleClick events of a Form, the Click and DoubleClick events are raised when the form is double-clicked and both methods are called. 如果双击的项不支持 DoubleClick 事件,则可能会引发两次 Click 事件。If an item is double-clicked that does not support the DoubleClick event, the Click event might be raised twice.