private void button1_Click(object sender, EventArgs e)
        {
 
            server = "178.250.xxx.xxx";
            database = "test";
            uid = "test";
            password = "password";
            string connectionString;
            connectionString = "SERVER=" + server + ";" + "DATABASE=" +
            database + ";" + "UID=" + uid + ";" + "PASSWORD=" + password + ";";
 
            connection = new MySQLConnection(connectionString);
            connection.Open(); // при открытии выдает ошибку
            MySQLCommand cmd;
            cmd = new MySQLDriverCS.MySQLCommand("select * from Категория", connection);
            MessageBox.Show(cmd.CommandText);
            cmd.ExecuteNonQuery();
           
        }