Question

I have a query that returns a resultset. And I want to apply filter and sorting on the resultset.
Can someone help me understand if I use the query in LINQ (I’m using EF 4.0), will I be able to get deferred executuin so that when i apply filter/sort in entity model, the execution happens only one time (deffered)

Thanks in advance!

Regards,
Bhavik

Answer 1

If the query takes no parameters, then yes, as you could make a view that calls that sproc, expose the view in your model, then query it.

If it takes parameters, then if you need the sort/filter done server-side, then I think you’d have to add a wrapper sproc (or modify the existing one) to pass in the sort and filter to perform (basically, do it manually, but at least server-side).

Alternatively, you could write the sql to do it server side (sproc results into temp table, then select from that temp table and apply filtering, still manually) and then ExecuteStoreQuery