protected void GridView2_RowDeleting(object sender, GridViewDeleteEventArgs e) { string studentid = ((Label)GridView2.Rows[e.RowIndex].Cells[0].FindControl("Label1")).Text.ToString(); bm.AddStudentToCourse(Request.QueryString["id"].ToString(), studentid); bm.AddStudentToGradeList(studentid, Request.QueryString["id"].ToString()); DataBindListDouble(Request.QueryString["id"].ToString()); }