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;
}