Menu.MenuItemCollection.Add Method (MenuItem)
Adds a previously created MenuItem to the end of the current menu.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
A MenuItem can only be contained in one menu at a time, and cannot be added more than once to the same menu. To reuse a MenuItem in more than one menu, use the CloneMenu method of the MenuItem class. To remove a MenuItem that you have previously added, use the Remove method.
The following code example creates an instance of the derived class, MainMenu, and adds a MenuItem to its collection of MenuItem objects. This example requires that the method defined in this example is located within the class for a form and called by a method in that form class.
Available since 1.1