Ef mysql 多线程

[male110]

MySqlException: There is already an open DataReader associated with this Connection which must be closed first.

Parallel.ForEach 然后报了上面的错误，怎么处理

[male110]

System.Data.Entity.Core.EntityException:“基础提供程序在 EnlistTransaction 上失败。”
内部异常
InvalidOperationException: Nested transactions are not supported.

[Presbyter]

https://stackoverflow.com/a/7404092

[beginor]

一个 connection 通常只能有一个 reader 在用