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?
Accepted Answer
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();
Popular Answer
var outParam = new SqlParameter();
outParam.ParameterName = "OutPutParametname";
outParam.SqlDbType = SqlDbType.Bit;//DataType Of OutPut Parameter
outParam.Direction = ParameterDirection.Output;
db.Database.ExecuteSqlCommand("EXEC ProcedureName @Param1,@Param2 OUTPUT", new SqlParameter("Param1", value), outParam);
object outParamValue = Convert.ToBoolean(outParam.Value);
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