DataTable - Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints

solution1.Tick the primary key  

　　1.right click on the Id of the entity in dataset schema.

　　2.Edit Key

　　3.Tick the Primary Key

　　

posted @ 2014-05-05 18:01  jinxinhelloworld  阅读(214)  评论(0)  编辑  收藏  举报