Controls in container form come over child form?

Question

In a container form I have menu and buttons to open ther forms.

Here I am fac

Answer 1

If it is a MDI application and you put controls in the parent window then they will be shown on top of any created child windows. You need to have your menu in a child window also, not on the parent form.

Look at this Article and this.

expecially this:

The parent Form may not contain any controls. >

Edit: Added Additional Information