Calling Sql Server Stored Procedures From C#

I have a simple stored procedure:


create procedure sp_testres

@mult1 int,

@mult2 int,

@result int output

as

select @result = (10*@mult1) + @mult2

go



When I call it


declare @result int

exec sp_testres 5, 6, @result output

print @result

(Result is correctly shown as 56).

I then in C# wrote the following:



m_cmd.CommandText = "sp_testres";

SqlParameter param2 = new SqlParameter("@mult2", SqlDbType.Int);

param2.Value = 6;

SqlParameter param1 = new SqlParameter("@mult1", SqlDbType.Int);

param1.Value = 5;

SqlParameter param3 = new SqlParameter("@result", SqlDbType.Int);

param3.Direction = ParameterDirection.Output;

m_cmd.CommandType = CommandType.StoredProcedure;

m_cmd.Parameters.Add(param1);

m_cmd.Parameters.Add(param2);

m_cmd.Parameters.Add(param3);

m_cmd.ExecuteNonQuery();


This works and param3.Value holds the result value.
I also notice that I can supply the parameters in any order, and things work fine.

What I want to know is: can I call the stored procedure with parameters, where I haven't supplied the parameter name, and just rely on the parameter order matching instead?