private void button2_Click(object sender, EventArgs e)
{
using (buy d = new buy())
{
d.ShowDialog();
}
}
private void button4_Click(object sender, EventArgs e)
{
using (buy d = new buy())
{
d.ShowDialog();
}
stack.Push(112233);
MessageBox.Show("Product ID Added to Your Stack", "Done", MessageBoxButtons.OK, MessageBoxIcon.Information);
}