public void CreateProductReturn(ProductReturn r)
{
//add preconditions later
//if (r.Amount == null)
//{
// throw new ArgumentNullException("Amount is not selected");
//}
new MessageDialog("Creating ProductReturn").ShowAsync();
try
{
PersistencyService.InsertProductReturnAsync(r);
// Add to ProductReturns
}
catch (Exception e)
{
Debug.WriteLine(e);
}
}
public void CreateProductReturn(Product p, ProductReturn r)
{
if (r.Amount < 1)
{
throw new ArgumentException("Du skal returnere mindst ét produkt");
}
if (r.Description == null)
{
throw new ArgumentException("Beskrivelse skal indtastes");
}
if (p.Stock < r.Amount)
{
throw new ArgumentException("Kan ikke returnere flere end antallet af vare på lager");
}
try
{
PersistencyService.InsertProductReturnAsync(r);
}
catch (Exception e)
{
Debug.WriteLine(e);
}
// Reduce the product stock, as we return those products
p.Stock -= r.Amount;
// Update product with the new amount
try
{
UpdateProduct(p);
}
catch (Exception e)
{
Debug.WriteLine(e);
throw;
}
// Add ReturnProduct to the list of the corresponding product (the ReturnProduct owner)
if (p.ProductReturns == null)
{
p.ProductReturns = new ObservableCollection <ProductReturn>();
}
p.ProductReturns.Add(r);
}