If this property is set to FALSE, any associated menu item button will be invisible on toolbar. For example:
.menuControl1.fileopen.OnToolbar = FALSE
Note:
The OnToolbar menu option is set to be TRUE by default on both client side and server side, which means any added menu item will be shown on toolbar unless it is set to be FALSE.
The OnToolbar property can be set as FALSE by user during runtime, when the menu option is not willing to be shown on toolbar.