private void InitializeConstructor()
{
ComboFunctions.FillEscortCombo(ddlEscort, null);
ComboFunctions.FillBookingTypeCombo(ddlBookingType);
ddlBookingType.SelectedValue = Enums.BOOKING_TYPES.LOCAL;
dtpInvoiceDate.Value = DateTime.Now.ToDate();
dtpDueDate.Value = DateTime.Now.ToDate().AddMonths(1);
FormatChargesGrid();
grdLister.ShowGroupPanel = false;
grdLister.AutoCellFormatting = true;
grdLister.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;
grdLister.ShowRowHeaderColumn = false;
objMaster = new InvoiceBO();
this.SetProperties((INavigation)objMaster);
grdLister.AllowAddNewRow = false;
dtpFromDate.Value = new DateTime(DateTime.Now.Year, DateTime.Now.Month, 1);
dtpTillDate.Value = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.LastDayOfMonthValue());
grdLister.CommandCellClick += new CommandCellClickEventHandler(grdLister_CommandCellClick);
}