Thank you.

In my actual application I have

Main form MenuStrip: AllowMerge: True

Main form Menustrip File menu:

MergeAction: MatchOnly
MergeIndex: -1


MDI Child form base class MenuStrip: AllowMerge: true

MDI Child form base class MenuStrip File Menu:

MergeAction: MatchOnly
MergeIndex: -1


MDI Child form base class MenuStrip File Menu New item:

MergeAction: Insert
MergeIndex: 1


When I open child window, child menustrip is not merged Main form.

Any idea what causes this ?

>Hi,
>
>Firstly you'll need to set the Visible property of the menustrip in the child form to false - otherwise it will show up even if empty.
>
>But that doesn't address the issue of why the 'File' option is not getting merged. You could try setting the MergeAction to 'MatchOnly' in the parent form as well (I'm not sure about this but although Help states that this is the default a reset sets the MergeAction to 'Append')