adding bound columns to gridview

[sarbjit sandhu]

Hi every one i am facing a problem regarding the gridview,
bc.HeaderText = M_colHead;
bc.DataField = M_colNam;
GridView1.Colum ns.Add(bc);//error here
GridView1.DataS ource = ds;
GridView1.DataB ind();
here M_colHead and M_colNam are the properties that are passed at the run time . please help me