获取实体框架7中已修改对象的列表 [英] Get List of Modified Objects within Entity Framework 7

问题描述

我很困惑-升级到Entity Framework 7，通常我会覆盖 DbContext 内部的SaveChanges，以便能够在更改之前获得所有已修改对象的列表。最终，我将触发一个脚本来跟踪数据库中的先前版本。在Entity Framework 6中，我将获得模型更改，如下所示：

I am stumped - upgrading to Entity Framework 7 and I typically override the SaveChanges inside the DbContext to be able to get a list of all the Modified Objects before it changes. Ultimately I have a script that fires that tracks the previous version in a database. In Entity Framework 6 I would get the model changes like so:

var oc = ((IObjectContextAdapter)this).ObjectContext;
var modifiedItems = oc.ObjectStateManager.GetObjectStateEntries(EntityState.Modified | EntityState.Deleted);

List<ObjectStateEntry> ModifiedObjlist = modifiedItems.ToList();

但是现在在实体中删除了 ObjectContext 框架7，我被困住了，我将如何在Entity Framework 7中获取已修改对象的列表？

However now that ObjectContext is removed within Entity Framework 7, I am stuck, how would I inside Entity Framework 7 get a list of the modified objects?

推荐答案

DbContext.ChangeTracker

var modifiedEntries = context.ChangeTracker
       .Entries()
       .Where(x => x.State == EntityState.Modified)
       .Select(x =>x.Entity)
       .ToList();

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