Apress Pro Asp.net MVC Framework 3 - SportsStore Edit Product not working?

Question

G’day All, has anyone purchased the ALPHA of Apress Pro Asp.net MVC Framework 3 and created the SportsStore? I can’t for the life of me edit products and have the DB update suc

Answer 1

public void SaveProduct(Product product)
{
    var prod = context.Products.SingleOrDefault(p => p.ProductID == product.ProductID);
    if (product.ProductID > 0)  
    {
        context.Products.Remove(prod);
    }
    context.Products.Add(product);            
    context.SaveChanges();
}