private void m_penjualan_Click(object sender, EventArgs e)
{
if (jual == null)
{
jual = new Penjualan();
jual.MdiParent = this;
jual.FormClosed += new FormClosedEventHandler(Jual_FormClosed);
jual.Show();
}
else
{
jual.Activate();
}
}
private void Jual_FormClosed(object sender, FormClosedEventArgs e)
{
jual = null;
}
