private void particularsToolStripMenuItem_Click(object sender, System.EventArgs e) { if (_instanceParticularsForm == null) { CloseAllForms(); _instanceParticularsForm = new Particulars(); _instanceParticularsForm.MdiParent = this; _instanceParticularsForm.FormClosed += instanceParticularsFormHasBeenClosed; } else { ShowMessage(); } _instanceParticularsForm.Show(); }
private void instanceParticularsFormHasBeenClosed(object sender, FormClosedEventArgs e) { _instanceParticularsForm = null; }