private void addProductButton_Click(object sender, EventArgs e)
{
Product product = CreateProduct();
SaveProduct.serializeProduct(product);
this.Close();
}
private void showProductsButton_Click(object sender, EventArgs e)
{
productInformText.Clear();
List <Product> products = SaveProduct.deserializeProducts();
if (products != null)
{
PrintProducts(products);
}
}