public string Save(Product product)
{
bool isProductExist = CheckProduct(product);
if (product.Name.Length > 0)
{
if (isProductExist)
{
return("This item Name is already exist! Please use another Name");
}
else
{
int rowAffected = productGateway.InsertProduct(product);
if (rowAffected > 0)
{
return("Saved Successfully!");
}
else
{
return("Save Failed!");
}
}
}
else
{
return("Invalid Category Name! it can't be null.");
}
}