Creating a DataGrid where one record is painted on multiple raows

Question

here is the problem let say that I 've the following DataGrid.... _______ --------------------------------------------- Header _ ||col_01 || col_02 || col_03 || col_04 || _______ --------------------------------------------- Row 0__ || __a__ || __b__ || __c__ || __d__ || _______ --------------------------------------------- I NEED TO PAINT SO IT LOOKS LOKE THE FO::OWING _______ ----------------------- Header _ ||col_01 || col_03 || _______ ----------------------- Header_ ||col_02 || col_04 || _______ ----------------------- Row 0__ || __a__ || __b__ || _______ ----------------------- Row 0__ || __c__ || __d__ || _______ ----------------------- I Hope The Idea Is now Clear ... so plz help me I need it yesterday............