/// <summary>
        /// Function to fill gridview
        /// </summary>
        public void GridFill()
        {
            try
            {
                PurchaseOrderBll BllPurchaseOrder = new PurchaseOrderBll();
                if (txtVoucherNo.Text.Trim() == string.Empty)
                {
                    strInvoiceNo = "-1";
                }
                else
                {
                    strInvoiceNo = txtVoucherNo.Text;
                }
                if (cmbCashOrParty.SelectedIndex == 0 || cmbCashOrParty.SelectedIndex == -1)
                {
                    decLedgerId = -1;
                }
                else
                {
                    decLedgerId = Convert.ToDecimal(cmbCashOrParty.SelectedValue.ToString());
                }
                if (cmbVoucherType.SelectedIndex == 0 || cmbVoucherType.SelectedIndex == -1)
                {
                    decVoucherTypeId = -1;
                }
                else
                {
                    decVoucherTypeId = Convert.ToDecimal(cmbVoucherType.SelectedValue.ToString());
                }

                if (cmbStatus.SelectedIndex == 0 || cmbStatus.SelectedIndex == -1)
                {
                    strStatus = "All";
                }
                else
                {
                     strStatus = cmbStatus.SelectedItem.ToString();
                }
                DateTime FromDate = this.dtpFromDate.Value;
                DateTime ToDate = this.dtpToDate.Value;
                ListObjPurchaseOrderRegister = BllPurchaseOrder.PurchaseOrdeReportViewAll(strInvoiceNo, decLedgerId, decVoucherTypeId, FromDate, ToDate, strStatus);

                if (ListObjPurchaseOrderRegister[0].Rows.Count > 0)
                {
                    decimal decTotal = 0;
                    for (int i = 0; i < ListObjPurchaseOrderRegister[0].Rows.Count; i++)
                    {
                        if (ListObjPurchaseOrderRegister[0].Rows[i]["totalAmount"].ToString() != null)
                        {
                            decTotal = decTotal + Convert.ToDecimal(ListObjPurchaseOrderRegister[0].Rows[i]["totalAmount"].ToString());
                        }
                    }
                    decTotal = Math.Round(decTotal, 2);
                    txtTotalAmount.Text = decTotal.ToString();
                }
                else
                {
                    txtTotalAmount.Text = "0.00";
                }
                dgvPurchaseOrderReport.DataSource = ListObjPurchaseOrderRegister[0];
                if (dgvPurchaseOrderReport.Columns.Count > 0)
                {
                    dgvPurchaseOrderReport.Columns["dgvtxtTotalAmount"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleRight;
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("PORP:4" + ex.Message, "Open Miracle", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
        }