Hiding/Not displaying the header of column in editmode

[NVB]

I have  radgrid with 2 column and I am hiding the header with showheader= 'False' and also not defined HeaderText attribute in column declaration.  Radgrid is set to POPUP for edit mode.

when I go into edit mode  for update or insert. the header is still displays with ":" 
How do I completley avoid displaying the column header in edit mode. I just want the i/p  field no headings

Also I do not want to use form template, because the column i have is  GridHtmleditorColumn and  equivalent editor column is not displaying in editform tempalte

Thanks

[NVB]

I  took care of it in  itemdatabound event

Thanks