Question

I’m using Entity Framework in an ASP.NET MVC3 application and I’m trying to use the following code:

var token = "";
this.Database.ExecuteSqlCommand("exec dbo.MyUsp", new SqlParameter("token", token));

My stored proc signature is:

CREATE PROCEDURE MyUSP(@token varchar(10) OUT)
(...)

When I use this code I get an error saying that parameter “@token” was expected but not supplied.

How do I tell EF that the token parameter is for output?

Answer 1

I ended up using this to get it working, but I’m sure there’s a more optimal way:

var p = new SqlParameter
{
    ParameterName = "token",
    DbType = System.Data.DbType.String,
    Size = 100,
    Direction = System.Data.ParameterDirection.Output
};
var resp = this.Database.SqlQuery<String>("exec dbo.usp_GetRequestToken @token", p);

return resp.First();