private void orderingmenuBttn_Click(object sender, EventArgs e) { if (orderingmenuform == null) { orderingmenuform = new orderingmenuFrm(); orderingmenuform.FormClosed += orderingmenuform_FormClosed; } orderingmenuform.Show(this); Hide(); }
void orderingmenuform_FormClosed(object sender, FormClosedEventArgs e) { orderingmenuform = null; Show(); }