private void BtnReport_Click(object sender, EventArgs e)
 {
     MainPageRouting.AddPage(new Ui.Report.ReportMainPage());
 }
 private void BtnSale_Click(object sender, EventArgs e)
 {
     MainPageRouting.AddPage(new Ui.Sale.SaleMainPage());
 }
 private void BtnAccount_Click(object sender, EventArgs e)
 {
     MainPageRouting.AddPage(new CustomerACCOUNT());
 }
 private void BtnProductEDIT_Click(object sender, EventArgs e)
 {
     MainPageRouting.AddPage(new ProductEDIT());
 }
 private void BtnCustomerEDIT_Click(object sender, EventArgs e)
 {
     MainPageRouting.AddPage(new CustomerEDIT());
 }