EF架构获取数据时报错:The ObjectContext instance has been disposed and can no longer be used for operations that require a connection. Do you want to correct the value?
场景:
EF底层,获取完主表,点击按钮,添加主表,字表内容时,报以上错误
解决方案:
在EF文件的空白处右键--属性,将“应用延迟加载”,改为False
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