How to use temp table in Stored Procedure with LINQ to SQL

If you run the procedure by itself (in SSMS, or Visual Studio) does it return results? Regardless of the answer, I would suggest you use a table variable - what you are currently using is not a temp table - it is just a table. Using a table variable will rule out any issues with actually creating/dropping the table. Googling will find you plenty of information, but this seems to be pretty informative: http://odetocode.com/code/365.aspx