Control.ContextMenu 属性

定义

获取或设置与控件关联的快捷菜单。Gets or sets the shortcut menu associated with the control.

public:
 virtual property System::Windows::Forms::ContextMenu ^ ContextMenu { System::Windows::Forms::ContextMenu ^ get(); void set(System::Windows::Forms::ContextMenu ^ value); };
[System.ComponentModel.Browsable(false)]
public virtual System.Windows.Forms.ContextMenu ContextMenu { get; set; }
member this.ContextMenu : System.Windows.Forms.ContextMenu with get, set
Public Overridable Property ContextMenu As ContextMenu

属性值

一个 ContextMenu,表示与控件关联的快捷菜单。A ContextMenu that represents the shortcut menu associated with the control.

属性

示例

下面的代码示例显示在单击并释放鼠标右键时分配给 TreeViewContextMenuThe following code example displays the ContextMenu assigned to a TreeView when the right mouse button is clicked and released. 此代码要求 Form 上有一个 TreeViewThis code requires that you have a Form with a TreeView on it. 还要求 TreeView 具有分配给其 ContextMenu 属性的 ContextMenuIt is also required that the TreeView has a ContextMenu assigned to its ContextMenu property.

private:
   void treeView1_MouseUp( Object^ /*sender*/, MouseEventArgs^ e )
   {
      // If the right mouse button was clicked and released,
      // display the shortcut menu assigned to the TreeView.
      if ( e->Button == ::MouseButtons::Right )
      {
         treeView1->ContextMenu->Show( treeView1, Point(e->X,e->Y) );
      }
   }
private void treeView1_MouseUp(object sender, MouseEventArgs e)
{
   // If the right mouse button was clicked and released,
   // display the shortcut menu assigned to the TreeView. 
   if(e.Button == MouseButtons.Right)
   {
      treeView1.ContextMenu.Show(treeView1, new Point(e.X, e.Y) );      
   }
}
Private Sub treeView1_MouseUp(sender As Object, _
  e As MouseEventArgs) Handles treeView1.MouseUp
   ' If the right mouse button was clicked and released,
   ' display the shortcut menu assigned to the TreeView. 
   If e.Button = MouseButtons.Right Then
      treeView1.ContextMenu.Show(treeView1, New Point(e.X, e.Y))
   End If
End Sub

注解

在用户右键单击控件时,可以使用快捷菜单向用户显示特定于上下文的菜单选项。Use a shortcut menus to give context-specific menu options to users when they right-click on the control.

继承者说明

在派生类中重写 ContextMenu 属性时,请使用基类的 ContextMenu 属性来扩展基实现。When overriding the ContextMenu property in a derived class, use the base class's ContextMenu property to extend the base implementation. 否则,必须提供所有实现。Otherwise, you must provide all the implementation. 不需要重写 ContextMenu 属性的 getset 访问器;如果需要,只能重写一个。You are not required to override both the get and set accessors of the ContextMenu property; you can override only one if needed.

适用于

另请参阅