How do we use stored procedure in ADO.NET?

CREATE PROCEDURE RUPDATE (@RID INTEGER, @RDESC NCHAR(50))
AS
SET NOCOUNT OFF
UPDATE Region
SET RDESC = @RDESC

SqlCommand command = new SqlCommand("RUPDATE",con);
command.CommandType = CommandType.StoredProcedure;
command.Parameters.Add(new SqlParameter("@RID",SqlDbType.Int,0,"RID"));
command.Parameters.Add(new SqlParameter("@RDESC",SqlDbType.NChar,50,"RDESC"));
command.Parameters[0].Value=4;
command.Parameters[1].Value="SouthEast";
int i=command.ExecuteNonQuery();

SqlCommand cmd1 = new SqlCommand("Employee", conn); Employee is the name of the stored procedure
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter("@empID", empId));