private void stockToolStripMenuItem_Click(object sender, EventArgs e) { if (sd == null) { sd = new StockDetails(); sd.MdiParent = this; sd.FormClosed += Sd_FormClosed; sd.Show(); } else { sd.Activate(); } }
private void Sd_FormClosed(object sender, FormClosedEventArgs e) { sd = null; // throw new NotImplementedException(); }