SourceGrid.GridVirtual.InvalidateRange C# (CSharp) Method

        public void InvalidateRange(Range range)
        {
            range = Range.Intersect(range, CompleteRange); //to ensure the range is valid
            if (range.IsEmpty() == false)
            {
                Rectangle gridRectangle = RangeToRectangle(range);
                if (gridRectangle.IsEmpty == false)
                    Invalidate(gridRectangle, true);
            }
        }