public void NotifyObservers()
{
Observers.ForEach((observer) => observer.Update <ProductRowViewerViewModel>(
new ProductRowViewerViewModel
{
ID = ProductID.GetValueOrDefault(),
Name = ProductName,
Category = ProductCategory.Value,
Description = ProductDescription,
Price = ProductPrice.GetValueOrDefault(),
StoredQuantity = ProductStoredQuantity.GetValueOrDefault(),
Picture = mProductImage
})
);
}