IQueryable on In-Memory Objects
Posted by Nicholas Blumhardt | November 22, 2007 21:31
Does anyone out there know where Enumerable.ToQueryable() from the early LINQ previews went?
I'm keen to mock IQueryable<T> to test some queries and would like to adapt an IEnumerable<T> for the purpose - implementing this by hand looks like a pain - surely there is an implementation provided with the BCL..?
If not, I guess you can expect to see some 'writing a pointless and trivial IQueryable provider'-type articles in this space :)
Comments
Found it!!!
Posted by Nicholas Blumhardt | November 30, 2007 20:36
For some bizarre reason it wasn't showing up - System.Linq.Queryable provides an extension method for the job. I was looking at Enumerable expecting that is where all of the extension methods for IEnumerable would be found :) Combine that with a missing using statement and a late night... Silly silly :)
Your Comment
Disclaimer: These articles represent the opinions of the authors and may not match the official position of Ubik Systems Pty. Ltd. Confirmation should be sought on all matters involving professional advice.
Posted by Luke Marshall | November 23, 2007 11:25
I think it got axed in favour of AsEnumerable<T>() - Which really doesn't help you at all. :) If you are trying to mock a Linq DataContext, you should be able to replace the tables with a collection behind the scenes.