C#-APP, odbc .net and MySql: I'm having problems with encodings

[Artem]

I'm using dbase MySql with character encoding utf-8. The program is written on C#. IDE - SharpDevelop.
I use odbc to get some string data from dbase, but I get:
either symbols '?' if I don't set the charset to utf8 in my program via connection string or 'SET NAMES 'utf8''
or just strange symbols if I set the charset using one of the ways written above.
I looked in msdn, but I didn't find anything more about how I can set character set for obdc connection. Concerning mysql itself, I've set all charset variables to utf-8.

private void EstablishConnection()
        {
            string MyConString = "DRIVER={MySQL ODBC 3.51 Driver};" +
                    "SERVER=localhost;" +
                    "DATABASE=building;" +
                    "UID=root;" +
                    "PASSWORD=arksoem;" +
                    "CHARSET=utf8;" +
                    "OPTION=6";
            MyConnection = new OdbcConnection(MyConString);//"DNS=myodbc");
            MyConnection.Open();
            OdbcCommand com = new OdbcCommand("SELECT name FROM building_type",MyConnection);
    //        OdbcCommand com = new OdbcCommand("SET NAMES \'utf8\'",MyConnection);
    //        com.ExecuteNonQuery();
    //        string MyComString = "SELECT name FROM building_type";
    //        com.CommandText = MyComString;
            OdbcDataReader dr = com.ExecuteReader();
            textBox1.Text = "My string. Строка этакая на utf8.";
            listBox1.BeginUpdate();
            while(dr.Read())
            {
                string str = dr.GetString(0);
                listBox1.Items.Add(str);
            }
            listBox1.EndUpdate();
            MyConnection.Close();
        }