C#连接MySql

1.从http://prdownloads.sourceforge.net/mysqldrivercs/MySQLDriverCS-n-EasyQueryTools-3.0.18.exe?download上下载MySQLDriverCS. 然后安装。
2.从安装目录中把MySQLDriverCS.dll.添加到.net的组件 

public void Connect_Net()
        {
            MySQLConnection mycn = new MySQLConnection(new MySQLConnectionString("localhost", "test", "root", "root", 3306).AsString);
            mycn.Open();
            MySQLCommand mycm = new MySQLCommand("SELECT * FROM user_message", mycn);
            MySQLDataReader reader = mycm.ExecuteReaderEx();
            try
            {
                while (reader.Read())
                {
                    str = reader.GetString(0) + reader.GetString(1);
                    textBox2.AppendText(str);
                }
            }
            catch (Exception e)
            {
                str = e.ToString();
            }
            reader.Close();
            mycn.Close();
        }