add assembly="MySql.Data, Version=5.1.5.0, Culture=neutral, PublicKeyToken=C5687FC88969C44D"/>

protected void MySqlCon()
 {
   //数据库连接字符串跟连接SQL SERVER没有区别
   string constr = "server=localhost;User Id=root;password=root;Database=test";

   //下面使用MySql Connector/net提供的专用对象
   MySqlConnection mycon = new MySqlConnection(constr);
   mycon.Open();
   MySqlCommand mycmd = new MySqlCommand("select * from users", mycon);
  MySqlDataReader myreader = mycmd.ExecuteReader();
  while (myreader.Read())
  {
      if (myreader.HasRows)
      {
    Response.Write(myreader.GetString("email") + "br/>");
      }
  }
  myreader.Close();
  mycon.Close();

}

public void Connect_Odbc()
   {
     //需要事先创建MySQL ODBC DSN.
     string odbcString = "DSN=MySQL;";

     //string odbcString = "DRIVER={MySQL ODBC 3.51 Driver};" +
     //     "SERVER=localhost;" +
     //     "Port=3306;" +  //连接本地数据库时可省略此项设置
     //     "DATABASE=test;" +
    //     "UID=root;" +
    //     "PASSWORD=root;" +
    //     "OPTION=3";

    OdbcConnection odbcConn = new OdbcConnection(odbcString);
    odbcConn.Open();
    OdbcCommand odbcCmd = new OdbcCommand("SELECT * FROM users", odbcConn);
    OdbcDataReader myreader = odbcCmd.ExecuteReader();
    while (myreader.Read())
    {
      if (myreader.HasRows)
      {    
        Response.Write(myreader.GetString(0) + "br/>");
      }
    }
    myreader.Close();
    odbcConn.Close();
  }