private void addBugToolStripMenuItem_Click(object sender, EventArgs e) { if (aab == null) { aab = new aboutAddbug(); aab.MdiParent = this; aab.FormClosed += aab_FormClosed; aab.Show(); } else { aab.Activate(); } }
void aab_FormClosed(object sender, FormClosedEventArgs e) { aab = null; //throw new NotImplementedException(); }