error when inserting into table having instead of trigger from entity data framework

Question

I\'m using entity framework 4 , on inserting a new record using entity framework in a table that have instead of insert trigger while the table has an identity column , the

Answer 1

Using Entity Framework 4.1, the solution posted by Ladislav to add a Select of Scope_Identity() to the end of the trigger body solved the problem for me. I have copied the entire trigger creation here for completeness. With this trigger defenition I was able to add rows to the table using context.SaveChanges().

ALTER TRIGGER [dbo].[CalcGeoLoc]
   ON  [dbo].[Address]
   INSTEAD OF INSERT
AS 
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT OFF;

-- Insert statements for trigger here
INSERT INTO Address (Street, Street2, City, StateProvince, PostalCode, Latitude, Longitude, GeoLoc, Name)
SELECT Street, Street2, City, StateProvince, PostalCode, Latitude, Longitude, geography::Point(Latitude, Longitude, 4326), Name 
FROM Inserted;

select AddressId from [dbo].Address where @@ROWCOUNT > 0 and AddressId = scope_identity();
END

Edit for handling computed values (Thanks to Chris Morgan in the comments):

If you have any other computed values in the table you will have to include them in the SELECT as well. For example if you had a CreatedDate column that uses GETDATE() you would make the select like this:

SELECT [AddressId], [CreatedDate] from [dbo].Addresses where @@ROWCOUNT > 0 and AddressId = scope_identity();