private void DoPopup()
        {
            if (FOnPopupItem != null)
            {
                FOnPopupItem(this, null);
            }

            POINT vPt = OwnerData.GetScreenCoord(FButtonDrawRect.Left - (this.Width - FButtonDrawRect.Width),
                                                 FButtonDrawRect.Bottom + 1);

            //DoItemsChange(this);

            FPopupForm.Popup(vPt.X, vPt.Y);
        }