2.6 October 2009, Adapter, Win 7

This might be a dumb question, but can I get the LLBLGenProDataSource2 to accept an IQueryable instead of an EntityCollection?

No, LLBLGenProDataSource(2) only consumes EntityCollections. If you want to use IQueryables as the source you should use LinqDataSource/LinqServerModeDataSource.

Do I lose anything by using the LinqServerModeDataSource from DevExpress rather than the LLBLGenProDataSource2? The documentation makes it look like an easy change for me to do.

One thing you loose is the 2-way databinding. As you can save data back or delete records using LLBLGenProDataSource.

That would be a show-stopper. The LinqServerModeDataSource seems to be able to do this by setting EnableUpdate="true". Is it just with an IQueryable<EntityCollection> it can't?

And how would the LinqServerModeDataSource perform the Update?

This Northwind example shows it:

http://www.devexpress.com/Support/Center/e/E313.aspx

What I mean it won't be using LLBLGen to Update the data, right?

Without trying to do it in a project I don't know. I will assume you know better than me and go back to the LDS as I need to do updating and I know it works if I convert my Linq to an EntityCollection beforehand. Thanks for your help!