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
This topic created in 3147 days ago, the information mentioned may be changed or developed.
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
Select Language