private void dividentsWindow_FormClosed(object sender, FormClosedEventArgs e)
{
this.dividentsWindow = null;
}
private void dividentsToolStripMenuItem1_Click(object sender, EventArgs e)
{
if (this.dividentsWindow == null)
{
this.dividentsWindow = new DividentsWindow();
this.dividentsWindow.MdiParent = this;
this.dividentsWindow.FormClosed += new FormClosedEventHandler(this.dividentsWindow_FormClosed);
this.dividentsWindow.Show();
}
else
{
this.dividentsWindow.Activate();
}
}