sql server 2008 table valued parameters linq2sql

Question

Has anybody experimented with these. Is this supported?

Answer 1

Table Value parameters aren't supported yet in LINQ to SQL. There's a few posts about this on Microsoft's MSDN forums:

DbType.Structured not available

SQL Server 2k8.User Defined Table Type. Mapping between DbType 'Structured' and Type 'System.Object'

The second link refers to Entity Framework, but the underlying issue is the same.

Answer 2

I actually had to try this myself. :0

It does not seem to be supported. I get this error when adding a stored procedure using a tvp parameter into the dbml file

DBML1005: Mapping between DbType 'Structured' and Type 'System.Object' in Parameter 'TVP' of Function 'dbo.spTestTableTypeParm' is not supported

Sad but true, I thought this could be a killer feature of sql 2008 and linq2sql