No result in load form in gridcontrol devexpress

private void VasaetNaghliyeSabokVaEsghat_Load(object sender, EventArgs e)
       {
           simpleButton1.Focus();
           LoadGrid();
       }

private void LoadGrid()
       {
           con.connect();
           SqlDataAdapter SDA = new SqlDataAdapter("Utility.EditCar", con.conn);
           SDA.SelectCommand.CommandType = CommandType.StoredProcedure;
           SDA.SelectCommand.Parameters.AddWithValue("@Kind", "1");
           SDA.SelectCommand.Parameters.AddWithValue("@PageNumber", "1");
           SDA.SelectCommand.Parameters.AddWithValue("@RowspPage ", "3");
           DataSet dsRel = new DataSet();
           DataTable dt = new DataTable();
           SDA.Fill(dt);
           if (dt.Rows.Count > 0)
           {
               for (int i = 0; i < dt.Rows.Count; i++)
               {
                   object[] obj = dt.Rows[i].ItemArray;
                   gridView2.AddNewRow();
                   int rowHandle = gridView2.GetRowHandle(gridView2.DataRowCount);
                   gridView2.SetRowCellValue(rowHandle, gridView2.Columns[0], obj[0].ToString());
                   gridView2.SetRowCellValue(rowHandle, gridView2.Columns[1], obj[1].ToString());
                   gridView2.SetRowCellValue(rowHandle, gridView2.Columns[2], obj[2].ToString());
                   gridView2.SetRowCellValue(rowHandle, gridView2.Columns[3], obj[3].ToString());
                   gridView2.SetRowCellValue(rowHandle, gridView2.Columns[4], obj[4].ToString());
                   gridView2.SetRowCellValue(rowHandle, gridView2.Columns[5], obj[5].ToString());
                   gridView2.UpdateCurrentRow();
               }
           }
           con.disconnect();
       }