问题描述
我首先使用实体框架代码,但出现以下编译错误.dbcontext 不包含刷新"的定义.我见过很多使用 Refresh 方法的例子.但是当我将 Refresh 方法添加到我的 dbcontext 时,我得到了一个编译错误.我正在使用以下命名空间.
I'm working with the entity framework code first and am getting the following compilation error. dbcontext does not contain a definition for 'Refresh'. I have seen many examples where the Refresh method is being used. But when i add the Refresh method to my dbcontext I get a complilation error. I'm using the following namespaces.
using System.Data;
using System.Data.Entity;
using System.Data.Linq;
我错过了一个吗?我试图查找它,但没有找到命名空间.
Am I missing one? I tried to look it up but did not find the namespace.
推荐答案
DbContext 确实没有 Refresh() 方法.
DbContext does indeed not have a Refresh() method.
您看到的示例可能使用 ObjectContext.Refresh().
The examples you saw were probably using ObjectContext.Refresh().
你可以从另一个得到一个:
You can get one from the other:
db = new MyDbContext())
...
var ctx = ((IObjectContextAdapter)db).ObjectContext;
ctx.Refresh();
这个问题有更多关于细节和差异的信息.
This question has more about the details and differences.
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