private void btn_ögrenilmis_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
if (OK == null)
{
OK = new OgrenilenKelimeler();
OK.MdiParent = this;
OK.FormClosed += OK_FormClosed;
OK.Show();
}
else
{
OK.Activate();
}
}
private void OK_FormClosed(object sender, FormClosedEventArgs e)
{
OK = null;
}