private void MT_Prepaid_Click(object sender, EventArgs e) { if (fp == null) { fp = new PackageForm(); fp.MdiParent = this; fp.FormClosed += new FormClosedEventHandler(Fp_FormClosed); fp.Show(); } else { fp.Activate(); } }
private void Fp_FormClosed(object sender, FormClosedEventArgs e) { fp = null; }