你即將離開本站

並前往https://csharpforums.net/threads/mysql-data-connection-must-be-valid-and-open-error-when-trying-to-executereader.4834/

Mysql.Data Connection must be valid and open error when ...

MySqlCommand.Throw (System.Exception ex) [0x0000a] in <4b988c68d54e4aa0a0550cbca36bc286>:0 at MySql.Data.MySqlClient.MySqlCommand.

確定！ 回上一頁

查詢 「MySqlCommand」的人也找了：

  1. MySqlConnection
    2.
  2. MySqlCommand
    3.
  3. MySqlConnector C#
    4.
  4. MySqlDataReader
    5.
  5. MySQL Connector/NET
    6.
  6. MySqlDataAdapter
    7.
  7. MySQL Connector
    8.
  8. MySQL Connector NET documentation
    9.