no scrollbar showed for ActiveX control in a WinForm

[Shwu]

Hello,

I have an activeX control created by ATL, which shows a treeview. It works
fine on my development machine for a C# form to embed the control. If the
content of the treeview beyonds the visible area of the form, the vertical
or horizontal scrollbars will be showed automatically on my development
machine. When I run the form on another Win2K3 with SP2, The form does not
show any scrollbar no matter the control's content changed. Also the
control's edge is invisible.

Please advise what is wrong on the second machine.

Thanks,

Shangwu

 

[Shwu]

I fixed it by setting the control's Dock property to Fill.