Control.MouseDoubleClick Control.MouseDoubleClick Control.MouseDoubleClick Control.MouseDoubleClick Event

定义

用鼠标双击控件时发生。Occurs when the control is double clicked by the mouse.

public:
 event System::Windows::Forms::MouseEventHandler ^ MouseDoubleClick;
public event System.Windows.Forms.MouseEventHandler MouseDoubleClick;
member this.MouseDoubleClick : System.Windows.Forms.MouseEventHandler 
Public Custom Event MouseDoubleClick As MouseEventHandler 

示例

下面的代码示例演示如何将此成员。The following code example demonstrates the use of this member. 在示例中,事件处理程序报告的匹配项MouseDoubleClick事件。In the example, an event handler reports on the occurrence of the MouseDoubleClick event. 此报告可帮助您了解事件发生的并可以帮助您进行调试。This report helps you to learn when the event occurs and can assist you in debugging. 若要报告或频繁发生的事件上多个事件,请考虑更换MessageBox.ShowConsole.WriteLine或将消息附加到多行TextBoxTo 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.

若要运行此代码示例,请将其粘贴到包含继承的类型的实例的项目Control,如ButtonComboBoxTo run the example code, paste it into a project that contains an instance of a type that inherits from Control, such as a Button or ComboBox. 然后该实例命名Control1,并确保事件处理程序相关联MouseDoubleClick事件。Then name the instance Control1 and ensure that the event handler is associated with the MouseDoubleClick event.

private void Control1_MouseDoubleClick(Object sender, MouseEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "Button", e.Button );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Clicks", e.Clicks );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "X", e.X );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Y", e.Y );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Delta", e.Delta );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Location", e.Location );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "MouseDoubleClick Event" );
}
Private Sub Control1_MouseDoubleClick(sender as Object, e as MouseEventArgs) _ 
     Handles Control1.MouseDoubleClick

    Dim messageBoxVB as New System.Text.StringBuilder()
    messageBoxVB.AppendFormat("{0} = {1}", "Button", e.Button)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Clicks", e.Clicks)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "X", e.X)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Y", e.Y)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Delta", e.Delta)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Location", e.Location)
    messageBoxVB.AppendLine()
    MessageBox.Show(messageBoxVB.ToString(),"MouseDoubleClick Event")

End Sub

注解

MouseDoubleClick时用户释放鼠标按钮两次连续快速地在光标位于控件上方时,发生事件。The MouseDoubleClick event occurs when the user depresses a mouse button twice in quick succession when the cursor is over the control. 将两次单击与双击分隔开来的时间间隔是由用户的操作系统的鼠标设置确定。The time interval that separates two single clicks from a double-click is determined by the mouse settings of the user's operating system.

这样的用户操作发生时,将由该控件引发以下一系列事件:The following series of events is raised by the control when such a user action takes place:

  1. MouseDown 事件。MouseDown event.

  2. Click 事件。Click event.

  3. MouseClick 事件。MouseClick event.

  4. MouseUp 事件。MouseUp event.

  5. MouseDown 事件。MouseDown event.

  6. DoubleClick 事件。DoubleClick event.

  7. MouseDoubleClick 事件。MouseDoubleClick event.

  8. MouseUp 事件。MouseUp event.

为此,各种事件不能禁用控件的类中。For this to occur, the various events cannot be disabled in the control's class.

重要

DoubleClick 事件是逻辑上控件的事件。DoubleClick events are logically higher-level events of a control. 它们可能会引发由其他用户操作,例如快捷键组合。They may be raised by other user actions, such as shortcut key combinations.

有关处理事件的详细信息,请参阅处理和引发事件For more information about handling events, see Handling and Raising Events.

适用于

另请参阅