Hot to limit what Primary data source populates

[RickM]

I am using a web service as my primary data source. The user enters a
record ID to retireve the XML and everything is OK.

But....

The web service populates about 1/2 of the XML nodes with data from
the DB. The rest of the fields (mostly rich text boxes) are just
returning empty data. This is how we need it to be the user will fill
in the rich text boxes.

I would like for the user to be able to hit the query button again to
update the data from database to get the latest data but if they do
this any data entered in the Rich text boxes gets cleared. Is there a
way for me to preserve the data in the rich text boxes so that the
query doesnt overwrite them?

I am using Managed C# code to do lots of other things with the form
but cant figure this one out.

Thanks
Rick