/// <summary>
 /// Total amount calculation
 /// </summary>
 public void TotalBillTaxCalculation()
 {
     try
     {
         TaxBll bllTax = new TaxBll();
         List<DataTable> ListObj = new List<DataTable>();
         ListObj = bllTax.TotalBillTaxCalculationBtapplicableOn();
         foreach (DataRow drowItem in ListObj[0].Rows)
         {
             if (drowItem != null)
             {
                 foreach (DataGridViewRow dgvrItem in dgvSalesReturn2.Rows)
                 {
                     if (dgvrItem.Cells["dgvTextTaxId"].Value != null)
                     {
                         if (dgvrItem.Cells["dgvTextTaxId"].Value.ToString() == drowItem["taxId"].ToString())
                         {
                             if (txtTotalAmount.Text != string.Empty)
                             {
                                 dgvrItem.Cells["dgvTextAmount"].Value = Math.Round((Convert.ToDecimal(drowItem["rate"].ToString()) * Convert.ToDecimal(txtTotalAmount.Text)) / 100, PublicVariables._inNoOfDecimalPlaces);
                                 decTotalBillTaxAmount = Math.Round(Convert.ToDecimal(dgvrItem.Cells["dgvTextAmount"].Value.ToString()), PublicVariables._inNoOfDecimalPlaces);
                             }
                         }
                     }
                 }
             }
         }
     }
     catch (Exception ex)
     {
         MessageBox.Show("SR19:" + ex.Message, "OpenMiracle", MessageBoxButtons.OK, MessageBoxIcon.Information);
     }
 }