I've using XML to transport VFP data between tiers in a COM+ DLL, it's pretty straigfull when you are using it to read the data.

The new problem I've found is about how to send the update from the business tier to the data tier, with VFP I can produce an XML Diffgram (trough XMLUpdategram() function or CursorAdapter class), but I'm finding problems to send this kind of XML when I prettend to not use MS SQLServer.

It will be cool if I could create a .NET Adapter (SQLAdapter, OLEDBAdapter, etc) we could update any kind of datasource, obviously the mayor work will be in How to move between the Diffgram elements (the before/after elements).

My question is: How can I move between Items in a XMLDiffgram?