using connector/net

[Emanuele Scozzafava]

hi!
I'm using mysql 5.0.1 and I want to use stored procedures.
I populate correctly mysqlcommand.parameters collection,
but when I try to execute the command (using ExecuteReader method)
I have an error message.
It says that there isn't parameters to the mysqlcommand object!

this is the code:

MySqlCommand cm = new MySqlCommand();
cm.CommandType = CommandType.StoredProcedure;
cm.Connection = cn;
cm.CommandText = "test";
cm.Parameters.Add("@par0", MySql.Data.MySqlClient.MySqlDbType.VarChar, 15).Value = "test";
MySqlDataReader dr = cm.ExecuteReader(CommandBehavior.SingleResult);

any suggestions?