private void FamiliesToolStripMenuItem_Click(object sender, EventArgs e) { if (frmFamilies == null) { frmFamilies = new FamiliesFrm(); frmFamilies.MdiParent = this; frmFamilies.FormClosed += FrmFamilies_FormClosed; frmFamilies.Show(); } else { frmFamilies.Activate(); } }
private void FrmFamilies_FormClosed(object sender, FormClosedEventArgs e) { frmFamilies = null; }