gridrangeinfo updated automatically

How can you maintain consistent gridrangeinfo objects so that their dimension (Top, Bottom, Left and Right) match the grid if you add e.g. a row in the grid before your range.Top? For instance, say that you have a 5x5 grid and two ranges, A(row1 to row3) and B(r4,r5) and you save references to the GridRangeInfo objects. How would you insert a row btw 2 and 3 (that should be included in range A) while ending up with references to the ranges A(row1,row4 including the new row) and B(row5,row6). I can't seem to do this with having to manually update, change the GridRangeInfo references. Should I hold a reference to the GridRangeInfo at all or is this object detached from the grid? Any help would be greatly appreciated:)

Create a GridRangeInfoList object to hold your ranges. Then you can use GridRangeInfoList.InsertRows/GridRangeInfoList.InsertCols methods to update the ranges in the rangelist.