private void marketNewsWindow_FormClosed(object sender, FormClosedEventArgs e) { this.marketNewsWindow = null; }
private void marketNewsToolStripMenuItem1_Click(object sender, EventArgs e) { if (this.marketNewsWindow == null) { this.marketNewsWindow = new MarketNewsWindow(); this.marketNewsWindow.MdiParent = this; this.marketNewsWindow.FormClosed += new FormClosedEventHandler(this.marketNewsWindow_FormClosed); this.marketNewsWindow.Show(); } else { this.marketNewsWindow.Activate(); } }