Hi keithroby,
Maybe I misunderstood your problem. I thought you were saving the selected items in a separate table; each with its own row. Since the datasource controls typically work with a single record, this won't work.
But you're right; if you want to store a string with the items, you can assign a value to one of the parameters of the data source control. However, you shouldn't do this in the Button's Click event, but in the data source's Inserting and Updating events. They fire right before the data is sent to the database and as such are a perfect place to modify parameters:
http://msdn.microsoft.com/en-us/libr...inserting.aspx
http://msdn.microsoft.com/en-us/libr....updating.aspx
Cheers,
Imar