There is already an open DataReader associated with this Connection which must be closed first EF
There is already an open DataReader associated with this Connection which must be closed first EF的更多相关文章
- There is already an open DataReader associated with this Connection which must be closed first
使用MVC4 EF Linq获取foreach列表循环的时候遇到了如下的问题:报错提示 There is already an open DataReader associated with this ...
- There is already an open DataReader associated with this Command which must be closed first." exception in Entity Framework
Fixing the "There is already an open DataReader associated with this Command which must be clos ...
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在实体对象中访问导航属性里的属性值出现异常“There is already an open DataReader associated with this Command which must be ...
- 关于MultipleActiveResultSets属性导致的There is already an open DataReader associated with this Command which must be closed first的解决方法
执行SqlDataReader.Read之后,如果还想用另一个SqlCommand执行Insert或者Update操作的话,会得到一个错误提示:There is already an open Dat ...
- 多线程下，多次操作数据库报错，There is already an open DataReader associated with this Command which must be closed first.
原文:https://www.cnblogs.com/sdusrz/p/4433108.html 执行SqlDataReader.Read之后,如果还想用另一个SqlCommand执行Insert或者 ...
- error 'there is already an open datareader associated with this command which must be closed first'
This can be easily solved by allowing MARS in your connection string. Add MultipleActiveResultSets=t ...
- There is already an open DataReader associated with this Command which must be closed first
通常出现在嵌套查询数据库(比如在一个qry的遍历时,又进行了数据库查询) 通过在连接字符串中允许MARS可以轻松解决这个问题. 将MultipleActiveResultSets = true添加到连 ...
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