private void printButton_Click(object sender, RoutedEventArgs e)
        {
            System.Windows.Controls.PrintDialog prnt = new System.Windows.Controls.PrintDialog();

            if (prnt.ShowDialog() == true)
            {
                prnt.PrintVisual(EventInvoiceGrid, "Printing Grid");
            }
            EventsList    EL      = new EventsList(eventIdTextBlock.Text, EventCalculation.eventDate, EventCalculation.eventStartTime, EventCalculation.photographyCost, EventCalculation.decorationCost, EventCalculation.totalcenterCost, EventCalculation.vat, EventCalculation.discount, EventCalculation.totalCostWithVat, EventCalculation.advancePay, EventCalculation.remainingPay, EventCalculation.customerName, EventCalculation.customerContactNumber, EventCalculation.customerEmail, EventCalculation.customerAddress, "Pending");
            EventService  service = new EventService();
            int           x       = service.AddEvent(EL);
            CenterService cs      = new CenterService();

            cs.BookCenter(eventIdTextBlock.Text, EventCalculation.centerId);
            EventCalculation.eventDate            = "";
            EventCalculation.eventStartTime       = "";
            EventCalculation.eventEndTime         = "";
            EventCalculation.printedPhotos        = "";
            EventCalculation.eachPhotoCost        = "";
            EventCalculation.photographyCost      = 0;
            EventCalculation.decorationCost       = 0;
            EventCalculation.stage                = "";
            EventCalculation.homelight            = "";
            EventCalculation.homelightDuration    = "";
            EventCalculation.streetlight          = "";
            EventCalculation.streetlightDeuration = "";
            EventCalculation.gate                = "";
            EventCalculation.planaquin           = "";
            EventCalculation.centerName          = "";
            EventCalculation.centerLoaction      = "";
            EventCalculation.totalCostWithoutVat = 0;
            EventCalculation.totalcenterCost     = 0;
            EventCalculation.eventDuration       = "";
            EventCalculation.CostStage           = 0;
            EventCalculation.CostHomeLight       = 0;
            EventCalculation.CostStreetLight     = 0;
            EventCalculation.CostGate            = 0;
            EventCalculation.CostPlanaquin       = 0;
            EventCalculation.vat                   = 0;
            EventCalculation.discount              = 0;
            EventCalculation.totalCostWithVat      = 0;
            EventCalculation.customerName          = "";
            EventCalculation.customerContactNumber = "";
            EventCalculation.customerEmail         = "";
            EventCalculation.customerAddress       = "";
            EventCalculation.eventId               = "";
            EventCalculation.advancePay            = "";
            EventCalculation.remainingPay          = "";
            this.Close();
        }