async Task IsEditingInvoice() { if (Id <= 0) { return; } _model = await GetById(Id); Lines = _model.InvoiceDetails.Map(i => new InvoiceLine { Id = i.Id, Product = ProductsData.SingleOrDefault(p => p.Code == i.ProductCode), Index = i.Id, IsDelete = false, IsEmpty = false, OptionValue = ProductsData.SingleOrDefault(p => p.Code == i.ProductCode).Id.ToString(), Qty = i.Qty, }).ToList(); }