ContextMenu.Show 方法

Source:

ContextMenu.cs

Source:

ContextMenu.cs

public:
 void Show(System::Windows::Forms::Control ^ control, System::Drawing::Point pos);

public void Show(System.Windows.Forms.Control control, System.Drawing.Point pos);

member this.Show : System.Windows.Forms.Control * System.Drawing.Point -> unit

Public Sub Show (control As Control, pos As Point)

参数

例外

示例

下面的代码示例演示如何构造快捷菜单并使用 Show 该方法。 若要运行该示例，请将以下代码粘贴到包含名为 Button1 的按钮的窗体中。 确保所有事件都与其事件处理方法相关联。

// Displays the shortcut menu, offsetting its location 
// from the upper-left corner of Button1 by 20 pixels in each direction. 
void Button1_Click( System::Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
   
   //Declare the menu items and the shortcut menu.
   array<MenuItem^>^menuItems = {gcnew MenuItem( "Some Button Info" ),gcnew MenuItem( "Some Other Button Info" ),gcnew MenuItem( "Exit" )};
   System::Windows::Forms::ContextMenu^ buttonMenu = gcnew System::Windows::Forms::ContextMenu( menuItems );
   buttonMenu->Show( Button1, System::Drawing::Point( 20, 20 ) );
}

// Displays the shortcut menu, offsetting its location 
// from the upper-left corner of Button1 by 20 pixels in each direction. 
private void Button1_Click(System.Object sender, System.EventArgs e)
{

    //Declare the menu items and the shortcut menu.
    MenuItem[] menuItems = new MenuItem[]{new MenuItem("Some Button Info"), 
        new MenuItem("Some Other Button Info"), new MenuItem("Exit")};

    ContextMenu buttonMenu = new ContextMenu(menuItems);
    buttonMenu.Show(Button1, new System.Drawing.Point(20, 20));
}

' Displays the shortcut menu, offsetting its location 
' from the upper-left corner of Button1 by 20 pixels in each direction. 
Private Sub Button1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click

    'Declare the menu items and the shortcut menu.
    Dim menuItems() As MenuItem = New MenuItem() _
        {New MenuItem("Some Button Info"), _
        New MenuItem("Some Other Button Info"), _
        New MenuItem("Exit")}

    Dim buttonMenu As New ContextMenu(menuItems)
    buttonMenu.Show(Button1, New System.Drawing.Point(20, 20))
End Sub

注解

通常，当用户单击绑定到的窗体ContextMenu的控件或区域的鼠标右键时，会显示 aContextMenu。 可以使用此方法在特定位置手动显示快捷菜单，并将其绑定到特定控件。 此方法在关闭菜单之前不会返回。

Source:

ContextMenu.cs

Source:

ContextMenu.cs

public:
 void Show(System::Windows::Forms::Control ^ control, System::Drawing::Point pos, System::Windows::Forms::LeftRightAlignment alignment);

public void Show(System.Windows.Forms.Control control, System.Drawing.Point pos, System.Windows.Forms.LeftRightAlignment alignment);

member this.Show : System.Windows.Forms.Control * System.Drawing.Point * System.Windows.Forms.LeftRightAlignment -> unit

Public Sub Show (control As Control, pos As Point, alignment As LeftRightAlignment)

参数