private void OnTimesheetMakerClick(object sender, EventArgs e) { timesheetMakerToolStripMenuItem.Enabled = false; TimesheetMakerForm form = new TimesheetMakerForm(); form.FormClosed += new FormClosedEventHandler( delegate(object _sender, FormClosedEventArgs _e) { timesheetMakerToolStripMenuItem.Enabled = true; }); form.MdiParent = this; form.Show(); }