OdbcCommandBuilder.DeriveParameters() / SqlCommandBuilder.DeriveParameters()

Hi all,

I have this:

                cn = new OdbcConnection("Driver={SQL Server};Server=My-PC01;Database=Northwind;Trusted_Connection=Yes");

                OdbcCommand cmd = new OdbcCommand("{? = call dbo.usp_TestParameters (?, ?)}", cn);
                cmd.CommandType = CommandType.StoredProcedure;
                cn.Open();
                OdbcCommandBuilder.DeriveParameters(cmd);

But the count from cmd.Parameters is alway 0.

However, If I use SqlClient, the count from cmd.Parameters is alway 3.

Can someone tell me why 

OdbcCommandBuilder.DeriveParameters() does not work?

Thanks in advance.