asp.net-mvc - DB中的实体框架ID顺序每次都不一样？

Question

在我的播种机中，我执行以下操作，它们在数据库中的着陆顺序似乎不时不同！我需要顺序保持一致，因为我使用存储的静态变量来引用 ID。为什么顺序不同？我可以让它保持一致吗？谢谢你。

    List<BadgeGroup> BGs = new List<BadgeGroup>();
    BadgeGroup Unclassified = new BadgeGroup() { Description = "Unclassified" };
    BGs.Add(Unclassified);

    BadgeGroup NumVotesOnPost = new BadgeGroup() { Description = "Number of votes on a post" };
    BGs.Add(NumVotesOnPost);

foreach (BadgeGroup BG in BGs)
    db.BadgeGroups.AddOrUpdate(BG);
     db.SaveChanges();

Answer 1

When you save a list of objects, EF doesn't guarantee that it'll be saved in that order. After you save, you can iterate through the objects to get their ids.