TableAdapter 不更新标识

Question

我使用 TableAdapter 像这样更新数据库：

var changes = anpDatabase.AnpCollection.GetChanges();
anpCollectionTableAdapter.Update((AnpDatabase.AnpCollectionDataTable)changes);
anpDatabase.AnpCollection.Merge(changes);
anpDatabase.AnpCollection.AcceptChanges();

但是这还不足以更新身份主列...我尝试将适配器的插入命令更改为以下内容：

INSERT INTO AnpCollection
                  (ParentCollectionId, StartDate, EndDate, Completed, IsPartial, Partitioned, IsAutomaticallyGenerated)
VALUES     (@ParentCollectionId,@StartDate,@EndDate,@Completed,@IsPartial,@Partitioned,@IsAutomaticallyGenerated);
SELECT CollectionId, ParentCollectionId, StartDate, EndDate, Completed, IsPartial, Partitioned, IsAutomaticallyGenerated FROM AnpCollection WHERE (CollectionId = SCOPE_IDENTITY())

但是，如果我这样做，而不是更新列，而是出现一个具有正确标识值的新行...这不是我想要的...有人可以帮助我吗？提前致谢！

Answer 1

将INSERT 语句与SELECT 放在最后，看起来正确的代码是：

anpCollectionTableAdapter.Update(anpDatabase.AnpCollection);

代替：

var changes = anpDatabase.AnpCollection.GetChanges();
anpCollectionTableAdapter.Update((AnpDatabase.AnpCollectionDataTable)changes);
anpDatabase.AnpCollection.Merge(changes);
anpDatabase.AnpCollection.AcceptChanges();