private void specialtyWindow_FormClosed(object sender, FormClosedEventArgs e) { this.specialtyWindow = null; }
private void specialtyToolStripMenuItem1_Click(object sender, EventArgs e) { if (this.specialtyWindow == null) { this.specialtyWindow = new SpecialtyWindow(); this.specialtyWindow.MdiParent = this; this.specialtyWindow.FormClosed += new FormClosedEventHandler(this.specialtyWindow_FormClosed); this.specialtyWindow.Show(); } else { this.specialtyWindow.Activate(); } }