Moving memory recordsets from ADO 2 to ADO.NET

Hi,
I am rewriting a medium to large financial application from VB6 to VB2005.

I use memory recordsets which are build dynamically in code and are sorted
using different sort keys embedded in the fields definitions,. (Collections
will not support multiple keys.).

These memory recordsets are part of the complicated logic used to display
grids to the user using tree displays etc.

In ADO.NET, I do not see a parallel object. A DataTable is much more
complicated as it tracks changes, (I think). I have seen code examples to
build a DataTable in code from scratch BUT this would be a much 'wieghtier'
structure.

As part of the redesign of the application, I want to build a User Control
that would be based on the GridView, (or a more extensive third party
control), with memory recordsets to store information about columns and rows
so it is important to get the correct implementation in ADO.NET.

Does anyone have any practical ideas????


Garry


.