hi for all i have problem in my application i try on it for two days first off i make procedure in database i sure of it procedure hasn't problem after that i make function in bll class

public static DataTable getbyidBLL(ClsresempDAL obj)
        {
            try
            {
                string _spName1 = "ResEmp"; // storedprocedure name
                string _mode = "getbyid"; // Method name in storedprocedure
                DBBridge objDBBridge = new DBBridge();//
                SqlParameter[] param = new SqlParameter[2];
                param[0] = new SqlParameter("@id", obj.Emp_ID);
                param[1] = new SqlParameter("@mode", _mode);
                DataTable ds = new DataTable();
                ds = objDBBridge.ExecuteDataset(_spName1, param).Tables[0];
                return ds;
            }
            catch (Exception exp)
            {
                //  clsErrorLog.log_error(exp);
                DataTable ds = new DataTable();
                return ds;
            }
        }

and then i call it in DAL class

public void getbyid()
         {
             DataTable dt = new DataTable();
             dt = ClsResEmpBLL.getbyidBLL(this);
             DataRow dr = dt.Rows[0];
          
                 Emp_ID = int.Parse(dr["Emp_ID"].ToString());
                 ResEmpCivilID = int.Parse(dr["ResEmpCivilID"].ToString());
                 ResEmpName = dr["ResEmpName"].ToString();
                 Grade = int.Parse(dr["Grade"].ToString());
                 PerTypeID = dr["PerTypeID"].ToString();
                 SectionID = int.Parse(dr["SectionID"].ToString());
                 User_name = dr["user_name"].ToString();
             
          
         }

 then in gridview row command i add this code

f (e.CommandName.ToString() == "edit0")
        {
           
            cc.Emp_ID = int.Parse(e.CommandArgument.ToString());
            cc.getbyid();
}

when i execute the error message appear to me There is no row at position 0. in getbyid in dal class  any one can help me

 thanks