In some cases, when you need to merge a MDI child window with a MDI parent menu you can enable the CanMerge property. You can also specify the type of behavior for the merging menu with its MergeType property. You can determine whether to add, replace, remove, or merge menu items with the MergeType property. The MergeItems causes the command links on the menus to be merged.

The command links for both menu items and toolbar buttons have a MergeOrder property which can be used to determine the order of the merged menu items or toolbar buttons.

For more information about how to accomplish merging menus see, Merging Menu Items.