SqlHelper stored procedure Transaction output parameters

--Stored procedures
ALTER PROCEDURE testTrans1
(@rtn INT OUTPUT)
As

BEGIN TRAN

IF (2<3)
BEGIN
ROLLBACK TRAN
SET @rtn = 0;
RETURN @rtn;
END

Commit Tran
SET @rtn = 1;
RETURN @rtn;

DECLARE @rtn INT
EXEC testTrans1 @rtn out
PRINT @rtn

------------------------------------------------------------

C # code

sqlparameter[] Parameters = {
New SqlParameter ("@rtn", SqlDbType.Int)
};
Parameters[0]. Direction = ParameterDirection.Output;

Dalbase.executenonquery (CommandType.StoredProcedure, "testTrans1", parameters);

int nrtnnum = 0;
Nrtnnum = Convert.ToInt32 (Parameters[0]. Value);

SqlHelper stored procedure Transaction output parameters