public static void zSetupEnum <T>(this ListBox listbox, evEnum2Control_Changed <T> onListChanged)
 {
     FormCreator_Enumeral_2Control <T> .ListBox_Setup(listbox, onListChanged);
 }
 public static void zSetupEnum <T>(this ComboBox combobox, evEnum2Control_Changed <T> onListChanged)
 {
     FormCreator_Enumeral_2Control <T> .ComboBox_Setup(combobox, onListChanged);
 }