private void Lh_FormClosed(object sender, FormClosedEventArgs e) { lh = null; }
private void btn_HangNode_Click(object sender, EventArgs e) { lh = new LinkedList_HangNode(); lh.FormClosed += Lh_FormClosed; lh.Show(); }
private void Lh_FormClosed(object sender, FormClosedEventArgs e) { lh = null; }
private void btn_HangNode_Click(object sender, EventArgs e) { lh = new LinkedList_HangNode(); lh.FormClosed += Lh_FormClosed; lh.Show(); }