Form.Menu Property

You can use this property to switch between complete menu sets at run time. For example, you can define one MainMenu to be displayed when your multiple-document interface (MDI) form has no active MDI child forms and another MainMenu to display when a child window is displayed. You can also use a different MainMenu when specific conditions exist in your application that require displaying a different menu set.

The following code example creates a MainMenu, assigns two MenuItem objects to the MainMenu and binds it to a form. This example requires that you have a Form created that is named Form1.

public void CreateMyMainMenu()
{
   // Create an empty MainMenu.
   MainMenu mainMenu1 = new MainMenu();

   MenuItem menuItem1 = new MenuItem();
   MenuItem menuItem2 = new MenuItem();

   menuItem1.Text = "File";
   menuItem2.Text = "Edit";
   // Add two MenuItem objects to the MainMenu.
   mainMenu1.MenuItems.Add(menuItem1);
   mainMenu1.MenuItems.Add(menuItem2);

   // Bind the MainMenu to Form1.
   Menu = mainMenu1;   
}

.NET Framework

.NET Framework Client Profile

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference