What is the full syntax for calling a stored procedure in SubSonic 3.0?

What is the full syntax for a stored procedure using SubSonic 3.0? Here is my code which is not working:

DataSet ds = new DataSet();
StoredProcedure sp = test.Usersp_Stock_Search("", 0, "");
sp.Execu开发者_运维技巧teDataSet();

ds=sp.ExecuteDataSet()