protected void fillgrid()
{
DataTable dt = new DataTable();
dt = obj.selectGriddata_role(compid);
DataView myDataView = new DataView();
myDataView = dt.DefaultView;
if (hdnsortExp.Value != string.Empty)
{
myDataView.Sort = string.Format("{0} {1}", hdnsortExp.Value, hdnsortDir.Value);
}
GridView1.DataSource = myDataView;
GridView1.DataBind();
}