SubMenuEmployee
To enable a mechanism for the VMS Motors application user to access the Add Employee tab control, we will extend the functionality of the SubMenuEmployee class to present another MenuItem option. Figure 20-13 shows the code required.
Earlier in Chapter 13, we created the SubMenuEmployee class, and now we will extend the {create-menubar} method to define another MenuBar item to display to the user.
Figure 20-13. Additional code listing for SubMenuEmployee.create-menubar.
{define-class public SubMenuEmployee{inherits AppSubMenu} ||||||||||||||||||||||||||||||||||||||||||||||||||||||| || Method: create-submenu || Purpose: This defines the appearance of the menu || item ||||||||||||||||||||||||||||||||||||||||||||||||||||||| {method ... |
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