public void UpdateInvoice_NullableProperties(int invoiceId)
{
// Entity's properties which can be null are of NullableProperty<T> type in order to distinguish
// between non-changing the property value and explicit setting to null.
var secondRow = new IssuedInvoiceItemPatchModel
{
Id = GetSecondRowId(invoiceId)
};
// At this point, properties DiscountPercentage, PriceListItemId and VatCodeId wouldn't be changed in iDoklad - their IsSet
// property contains false.
// Explicit set VatCodeId of last row to null - no explicit conversion to NullableProperty<int> needed.
secondRow.VatCodeId = null;
// Set DiscountPercentage to 10% - no explicit conversion to NullableProperty<decimal> needed.
secondRow.DiscountPercentage = 10m;
// In some cases, explicit conversion is required to determine the type of expression result.
// Set specific value or null - DiscountPercentage in iDoklad will be changed
secondRow.DiscountPercentage = DateTime.Today.DayOfWeek == DayOfWeek.Friday ? (NullableProperty <decimal>) 5 : null;
secondRow.DiscountPercentage = DateTime.Today.DayOfWeek == DayOfWeek.Sunday ? new NullableProperty <decimal>(10) : null;
// Preserve original value in iDoklad - DiscountPercentage in iDoklad won't be changed
secondRow.DiscountPercentage = default;
// Property value can be accessed by its Value property or we can use implicit conversion.
var discountPercentage1 = secondRow.DiscountPercentage.Value;
decimal?discountPercentage2 = secondRow.DiscountPercentage;
// Create update model for first row. If we didn't include it in invoice update model, it would be removed.
var firstRow = new IssuedInvoiceItemPatchModel
{
Id = GetFirstRowId(invoiceId)
};
// Create invoice update model.
var invoiceUpdateModel = new IssuedInvoicePatchModel
{
Id = invoiceId,
Items = new List <IssuedInvoiceItemPatchModel>
{
firstRow,
secondRow
}
};
// Update the invoice
var updatedInvoice = _api.IssuedInvoiceClient.Update(invoiceUpdateModel).Data;
}
private IssuedInvoiceItemPatchModel AddPriceListItem(int priceListItemId, int amount)
{
// Get price list item
var priceListItem = GetPriceListItem(priceListItemId);
// Create new issued invoice item model. Model is of IssuedInvoiceItemPatchModel because we are updating the invoice.
var issuedInvoiceItem = new IssuedInvoiceItemPatchModel
{
Name = priceListItem.Name,
Amount = amount,
Code = priceListItem.Code,
PriceType = priceListItem.PriceType,
UnitPrice = priceListItem.Price,
Unit = priceListItem.Unit,
VatRateType = priceListItem.VatRateType,
PriceListItemId = priceListItem.Id
};
return(issuedInvoiceItem);
}
