无法获取ApplyCurrentValues（实体）的实体框架5工作 [英] Can't get the ApplyCurrentValues(Entity) to work in Entity Framework 5

问题描述

同志们，谁能帮助我在这里，实体框架5似乎没有ApplyCurrentValues（）方法。有另一种方式来更新实体框架V5数据库对象。这里是我想要做

Comrades, can anyone help me out here, entity framework 5 seems not to have ApplyCurrentValues() method. Is there another way to update the database object in entity framework v5. here is what am trying to do

odc.Accounts.Attach(new Account { AccountID = account.AccountID });
  odc.Accounts.ApplyCurrentValues(account);
  odc.SaveChanges();

但我已经越来越在 ApplyCurrentValues编译错误（）行

推荐答案

ApplyCurrentValues 是的ObjectContext API方法，所以首先你要访问的是包裹在的DbContext ObjectContext中：

ApplyCurrentValues is an ObjectContext API method, so first you have to gain access to the objectcontext that is wrapped in the DbContext:

odc.Accounts.Attach(new Account { AccountID = account.AccountID });
((IObjectContextAdapter)odc).ObjectContext
    .ApplyCurrentValues("Accounts", account);
odc.SaveChanges();

请注意，该包裹的上下文没有会员像帐户，所以你必须使用< 。code>的ObjectContext 方法本身

Note that the wrapped context does not have members like "Accounts", so you have to use the ObjectContext method itself.

但是你可以做使用的DbContext API相同的：

But you can do the same using the DbContext API:

var sourceAcc = new Account { AccountID = account.AccountID });
odc.Entry(account).CurrentValues.SetValues(sourceAcc);

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