DataGridView ต้องการเพิ่มสีใน Cell ที่มีค่ามากกว่าที่กำหนด Win App C#

private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e) {

			int b = Convert.ToInt32(ReseAmount); // ReseAmount = 200000

			SqlConnection db = new SqlConnection(conn);
			try {
				db.Open();

				string sql;

				sql = "SELECT ";
				sql += "Resu_Send_Total ";
				sql += "FROM ";
				sql += "T_Results ";
				sql += "WHERE ";
				sql += "Rese_ID = '" + RequestID + "'";

				SqlDataAdapter da = new SqlDataAdapter(sql, db);
				DataSet ds = new DataSet();
				da.Fill(ds, "Cust");

				if (ds.Tables[0].Rows.Count > 0) {
					int i;

					for (i = 0; i < dst.Tables[0].Rows.Count; i++) {


						if (Convert.ToInt32(dataGridView1.Rows[i].Cells["Resu_Send_Total"].Value) < b) {
							dataGridView1.Rows[i].Cells["Resu_Send_Total"].Style.BackColor = Color.Pink;
						}
						else if (Convert.ToInt32(dataGridView1.Rows[i].Cells["Resu_Send_Total"].Value) > b) {
							dataGridView1.Rows[i].Cells["Resu_Send_Total"].Style.BackColor = Color.Red;
						}
					}
				}
				
catch (Exception ex) {
				MessageBox.Show(ex.Message);
			}
			finally {
				db.Close();
			}

  private void dgvCashAdv_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
        {
            int iRow = e.RowIndex;
            DataGridViewRow r = dgvCashAdv.Rows[iRow];
            string cellValue = r.Cells[10].Value.ToString(); //UnitPrice
            if (cellValue == "ส่งค่าแล้ว")
            {
                r.DefaultCellStyle.BackColor = Color.FromArgb(255, 204, 255);
                r.DefaultCellStyle.ForeColor = Color.FromArgb(185, 10, 173);
            }
            else
            {
                r.DefaultCellStyle.BackColor = Color.FromArgb(255, 255, 153);
                r.DefaultCellStyle.ForeColor = Color.FromArgb(255, 26, 26);
            }
        }