void anbi_FormClosed(object sender, FormClosedEventArgs e) { anbi = null; }
private void aDDMoneyOnBankAccountToolStripMenuItem_Click(object sender, EventArgs e) { if (anbi == null) { anbi = new AddNewBankInformation(); anbi.MdiParent = this; anbi.FormClosed += anbi_FormClosed; anbi.Show(); } else { anbi.Activate(); } }