private void securityToolStripMenuItem_Click(object sender, EventArgs e)
{
if (_privilege == null)
{
_privilege = new FrmPrivilege {MdiParent = this};
_privilege.FormClosed += Privilege_FormClosed;
_privilege.Show();
}
else
{
_privilege.Activate();
_privilege.WindowState = FormWindowState.Normal;
}
}
private void Privilege_FormClosed(object sender, FormClosedEventArgs e)
{
_privilege = null;
}