private void venecia_button_Click(object sender, EventArgs e)
{
PizzaForm f2 = new PizzaForm();
f2.SetLabel("Venecia", "25");
f2.ShowDialog();
}
private void margarita_button_Click(object sender, EventArgs e)
{
PizzaForm f2 = new PizzaForm();
f2.SetLabel("Margarita", "20");
f2.ShowDialog();
}