Add toolbar on datagridview in VB.Net -

i created custom control inherits datagridview , add custom properties. add toolbar control docked on top of can have functionalities add row, delete row etc. displays image below:

as can see columnheader under toolbox control...i want them not overlap each other...please help.

edit

i insert custom property one:

dim _toolbox_ toolstrip dim _showtoolbar boolean  public property showtoolbar() boolean             return _showtoolbar     end     set(byval value boolean)         _showtoolbar = value         if value = true             _toolbox_ = new toolstrip             mybase.controls.add(_toolbox_)             _toolbox_.dock = windows.forms.dockstyle.top             _toolbox_.visible = true         else             mybase.controls.remove(_toolbox_)             _toolbox_ = nothing         end if     end set 

end property

the problem here toolstrip control inside datagridview, , such location origin (0,0) top left corner of datagridview.

in instance might better off creating user control allows place toolstrip above datagridview. expose both of them properties can still access controls' own properties , methods, , add property turn display of toolstrip on or off, , set position of datagridview appropriately:

dim _showtoolbar boolean dim _toolbox toolstrip  public property showtoolbar() boolean             return _showtoolbar     end     set(byval value boolean)         _showtoolbar = value         if value             if _toolbox nothing                 _toolbox = new toolstrip()                 me.controls.add(_toolbox)             end if              _toolbox.location = new system.drawing.point(0,0)             _datagridview.location = new system.drawing.point(0,_toolbox.size.height)             _toolbox.visible = true         else             _toolbox.visible = false             _datagridview.location = new system.drawing.point(0,0)         end if     end set end property 

all of brain compiler, there might errors in there, should started.