>Hi all,
> i use vb.net , mdi form. In main page isMdiContainer = true, backgroundImage , label1 use to diplay current time, label2 use to display login userinformation
> If i onclick ToolStripMenuItem will show the subform, in this time i set the subform.BringToFront but it still behind all of the control(label1 and label2).
>if i set all of control to SendToBack then will lose the control(label1 and label2).
>How can i do, i want to subForm can BringToFront ? Thank you .
>
>Anyone know how solve this problem, and i see the othe relate post. Other peole say, MDI isn't supposed to handle that kind of controls it self.
>The controls on the MDI are allways on top.
>For example, if you dock a panel on one side of the MDI Form, every single child form will never stand on top of it...
>My advise to you is for you to put those controls on a borderless form and make it an MDIChild. That you you can play with BringToFront & SendToBack
>
>
>But i try to add a panel and dock click right side. the control still over the subform.

Let me try again:

1. A MdiParent form has a *client area* which normally consists of the whole form but excluding the title bar.

2. If you add a control (e.g. a Panel containing other controls) and dock it in the MDI form then it will *not* be part of the client area - i.e. the client area will consist of the remaining space.

3. When you add a child form to an MDI parent it is only visible in the parent form client area. Parts if the child form may be hidden by any docked controls (eg a menu strip) but in those cases scroll bars appear in the client area.

4. If you add un-docked controls to the client area of a MDIParent they will *always* be on top of any child window.

Whatever solution you go for it will need to accord with the above.