private void LoadGridBillOutstanding(TransactionEntity transactionEntity)
{
List <PharmaBusinessObjects.Transaction.ReceiptPayment.BillOutstanding> allOutstandings = applicationFacade.GetAllBillOutstandingForLedger(transactionEntity);
dgvCustomerBillOS.DataSource = allOutstandings;
ExtensionMethods.SetGridDefaultProperty(dgvCustomerBillOS);
dgvCustomerBillOS.Columns["InvoiceNumber"].Visible = true;
dgvCustomerBillOS.Columns["InvoiceNumber"].HeaderText = "Bill Number";
dgvCustomerBillOS.Columns["InvoiceNumber"].DisplayIndex = 0;
dgvCustomerBillOS.Columns["InvoiceDate"].Visible = true;
dgvCustomerBillOS.Columns["InvoiceDate"].HeaderText = "Bill Date";
dgvCustomerBillOS.Columns["InvoiceDate"].DisplayIndex = 1;
dgvCustomerBillOS.Columns["InvoiceDate"].DefaultCellStyle.Format = "dd/MM/yyyy";
dgvCustomerBillOS.Columns["BillAmount"].Visible = true;
dgvCustomerBillOS.Columns["BillAmount"].HeaderText = "Bill Amount";
dgvCustomerBillOS.Columns["BillAmount"].DisplayIndex = 2;
dgvCustomerBillOS.Columns["OSAmount"].Visible = true;
dgvCustomerBillOS.Columns["OSAmount"].HeaderText = "Outstanding Amount";
dgvCustomerBillOS.Columns["OSAmount"].DisplayIndex = 3;
//Display totall of outstanding amount
decimal totallOutstanding = 0;
allOutstandings.ForEach(x => totallOutstanding += x.OSAmount);
lblAmtOSVal.Text = Convert.ToString(totallOutstanding);
}