void frm_MouseMove(object sender, MouseEventArgs e)
        {
            PopupLookUpEditForm         editform = sender as PopupLookUpEditForm;
            PropertyInfo                pi       = typeof(PopupBaseForm).GetProperty("ViewInfo", BindingFlags.NonPublic | BindingFlags.Instance);
            PopupLookUpEditFormViewInfo vInfo    = pi.GetValue(editform, null) as PopupLookUpEditFormViewInfo;
            LookUpPopupHitTest          hitTest  = vInfo.GetHitTest(new Point(((MouseEventArgs)e).X, ((MouseEventArgs)e).Y));

            int SelectedIndex = -1;

            if (hitTest.HitType == LookUpPopupHitType.Row)
            {
                SelectedIndex = hitTest.Index;
            }

            //if (SelectedIndex == -1 || m_oldSelectedIndex != SelectedIndex)
            //    InspectionDataForm.ttc.HideHint();

            if (m_oldSelectedIndex != SelectedIndex)
            {
                object row = this.Properties.GetDataSourceValue("VAL", SelectedIndex);//.GetDataSourceRowIndex(SelectedIndex);//.GetDataSourceRowByKeyValue(SelectedIndex);
                if (row != null)
                {
                    string item = row.ToString();
                    //if (item.Length > 100) InspectionDataForm.ttc.ShowHint(item);
                }
            }

            m_oldSelectedIndex = SelectedIndex;
        }
        private void popupForm_MouseUp(object sender, MouseEventArgs e)
        {
            PopupLookUpEditForm         popupForm = sender as PopupLookUpEditForm;
            PopupLookUpEditFormViewInfo vi        = GetPopupFormViewInfo(popupForm);
            LookUpPopupHitTest          upTest    = vi.GetHitTest(new Point(e.X, e.Y));
            LookUpPopupHitTest          pressInfo = GetPressInfo(sender as PopupLookUpEditForm);

            if (upTest.HitType == pressInfo.HitType && upTest.Index == pressInfo.Index &&
                Math.Abs(upTest.Point.X - pressInfo.Point.X) < SystemInformation.DragSize.Width &&
                (Math.Abs(upTest.Point.Y - pressInfo.Point.Y) < SystemInformation.DragSize.Height) &&
                upTest.HitType == DevExpress.XtraEditors.Popup.LookUpPopupHitType.Header)
            {
                vi.AutoSearchHeaderIndex = upTest.Index;
                SavePopupParams(popupForm);
            }
        }