Control.MouseDoubleClick 事件

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 

事件类型

MouseEventHandler

示例

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,事件处理程序报告事件的发生 MouseDoubleClickIn the example, an event handler reports on the occurrence of the MouseDoubleClick 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 MessageBox.Show Console.WriteLine 将消息替换为多行或将其追加到多行 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.

若要运行示例代码,请将其粘贴到一个项目中,该项目包含从继承的类型的实例 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. 然后命名该实例 Control1 ,并确保事件处理程序与事件相关联 MouseDoubleClickThen 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 光标位于控件上并且用户 depresses 鼠标按钮两次时,将发生此事件。The MouseDoubleClick event occurs when the user depresses a mouse button twice in quick succession when the cursor is over the control. 双击两次单击的时间间隔是由用户操作系统的鼠标设置确定的。The time interval that separates two single clicks from a double-click is determined by the mouse settings of the user's operating system.

当发生此类用户操作时,控件将引发以下序列事件: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,不能在控件的类中禁用各种事件。For this to occur, the various events cannot be disabled in the control's class.

重要

DoubleClick 事件是控件在逻辑上更高的级别事件。DoubleClick events are logically higher-level events of a control. 它们可能由其他用户操作(如快捷键组合)引发。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