private void symbolDividendHistoryToolStripMenuItem_Click(object sender, EventArgs e) { if (this.dividendHistoryWindow == null) { this.dividendHistoryWindow = new DividendHistoryWindow(); this.dividendHistoryWindow.MdiParent = this; this.dividendHistoryWindow.FormClosed += new FormClosedEventHandler(this.dividendHistoryWindow_FormClosed); this.dividendHistoryWindow.Show(); } else { this.dividendHistoryWindow.Activate(); } }
private void dividendHistoryWindow_FormClosed(object sender, FormClosedEventArgs e) { this.dividendHistoryWindow = null; }