Calling scalar function from c# using Entity Framework 4.0 / .edmx

Question

I would like to map my scalar function to my .edmx but it fails. I right click on my entity framework mapping, and choose update model from database. It appears in my stored

Answer 1

The one and the only solution is to convert the function scalar type to table value type with a single value in the table, please see the code sample.

You don't have to change anything in the EDMX XML, please modify the SQL function

Scalar function as it was, which doesn't work

CREATE FUNCTION [dbo].[GetSha256]
(
    -- Add the parameters for the function here
    @str nvarchar(max)
)
RETURNS VARBINARY(32)
AS
BEGIN
    RETURN ( SELECT * FROM HASHBYTES('SHA2_256', @str) AS HASH256 );
END -- this doesn't work.

Scalar function -> Converted to Table Valued function , it works

CREATE FUNCTION [dbo].[GetSha2561]
(
    -- Add the parameters for the function here
    @str nvarchar(max)
)
RETURNS  @returnList TABLE (CODE varbinary(32))
AS
BEGIN

    INSERT INTO @returnList
    SELECT HASHBYTES('SHA2_256', @str);

    RETURN; -- This one works like a charm.

END

Edmx screenshot