public IActionResult Edit(int invoiceId) { InvoiceAdapter invoiceAdapter = new InvoiceAdapter(); Invoice invoice = invoiceAdapter.GetById(invoiceId); if (invoice == null) { return(RedirectToAction("Index")); } else { InvoiceModels model = new InvoiceModels(); model.InvoiceId = invoice.InvoiceId; model.CustomerId = invoice.CustomerId; model.Total = invoice.Total; model.InvoiceDate = invoice.InvoiceDate; return(View(model)); } }