public void AddSelfInvoice_Executed(object sender) { if (AppProperties.FormHaveModifications) { if (SelectedMaterial == null || !SelectedMaterial.Price.HasValue) { MessageBox.Show("Selezionare un materiale"); return; } if (!Quantity.HasValue) { MessageBox.Show("Selezionare una quantità "); return; } if (SelectedMeasure == null) { MessageBox.Show("Selezionare una misura"); return; } if (!MaterialPrice.HasValue) { MessageBox.Show("Selezionare un costo"); return; } //var invoiceNumber = 1; var invoiceGroup = Guid.NewGuid(); var settings = _contoData.GetSettings(); var maxInvoiceValue = settings != null ? settings.MaxInvoiceValue : 990; maxInvoiceValue = maxInvoiceValue.HasValue ? maxInvoiceValue.Value : 990; var measure = _contoData.MeasureGet(SelectedMaterial.MeasureId); decimal invoiceCost = (Quantity.Value * SelectedMaterial.Price.Value) / measure.Grams * SelectedMeasure.Grams; //decimal quantityAtMaxInvoiceValue = (measure.Grams / SelectedMeasure.Grams); decimal quantityAtMaxInvoiceValue = maxInvoiceValue.Value * (Quantity.Value * SelectedMeasure.Grams) / invoiceCost / SelectedMeasure.Grams; var invoices = (int)Math.Truncate(invoiceCost / maxInvoiceValue.Value) + (invoiceCost % maxInvoiceValue.Value == 0 ? 0 : 1); var quantityTot = Quantity.Value; for (int i = 0; i < invoices; i++) { var invoiceCurrentCost = invoiceCost > maxInvoiceValue ? maxInvoiceValue.Value : invoiceCost; invoiceCost = invoiceCost - maxInvoiceValue.Value; var quantity = quantityTot > quantityAtMaxInvoiceValue ? quantityAtMaxInvoiceValue : quantityTot; quantityTot = quantityTot - quantityAtMaxInvoiceValue; _contoData.SelfInvoicesAdd(new SelfInvoices { MaterialId = SelectedMaterial.Id, Quantity = quantity, VatExcept = VatExempt, //InvoiceNumber = invoiceNumber++, InvoiceYear = InvoiceYear, MeasureId = SelectedMeasure.Id, InCashFlow = false, InvoiceDate = InvoiceDate, InvoiceCost = invoiceCurrentCost, InvoiceGroupId = invoiceGroup }); } SelectedMaterial = null; MaterialPrice = null; SelectedMeasure = null; Quantity = null; UpdateList(); AppProperties.FormHaveModifications = false; } else { MessageBox.Show("AddSelfInvoice"); } }