public void MouseUp(MouseControllerEventArgs e)
        {
            //throw new NotImplementedException();
            if (mouseDownRange != Grid.Model.SelectedCells && ExcelRangeExtended != null)
            {
                this.FillDraggedRanges();
                ExcelRangeExtendedEventArgs arg = new ExcelRangeExtendedEventArgs(mouseDownRange, Grid.Model.SelectedCells);
                ExcelRangeExtended(Grid, arg);
            }

            moveDir = MovingDirection.None;
            Grid.InvalidateCells();
        }
 void ExcelLikeUiGridExcelMarkerMouseController_ExcelRangeExtended(object sender, ExcelRangeExtendedEventArgs e)
 {
 }