'System.Reactive.Concurrency.Scheduler.NewThread'已过时

我试图从数据库检索数据使用实体框架5.0代码快速和反应性扩展（Rx）。我正在为此编写以下代码。'System.Reactive.Concurrency.Scheduler.NewThread'已过时

var obs = DataContext.GetDataContext().BreakdownCauses.OrderBy(x => x.Cause).ToObservable(Scheduler.NewThread); 
obs.SubscribeOnDispatcher().Subscribe(x => ItemCollection.Add(slow(x))); 

BreakdownCause slow(BreakdownCause cs) 
    { 
     System.Threading.Thread.Sleep(500); 
     return cs; 
    }

但它告诉我这样的警告：

'System.Reactive.Concurrency.Scheduler.NewThread' is obsolete: 'This property is no longer supported due to refactoring of the API surface and elimination of platform-specific dependencies. Please add a reference to the System.Reactive.PlatformServices assembly for your target platform and use NewThreadScheduler.Default to obtain an instance of this scheduler type. See http://go.microsoft.com/fwlink/?LinkID=260866 for more information.'

并在运行时我得到一个异常：

The calling thread cannot access this object because a different thread owns it.

请建议我我如何使用无扩展（Rx）的正确的EF5.0在我的WPF应用程序中快速编码或以任何连击方式异步调用数据库。

来源

2013-02-16 Md.Hasanuzzaman

您是否尝试根据提供给您的消息更改您的代码？ – 2013-02-16 11:17:14

ya。现在警告消失了。但异常仍然存在。 – 2013-02-16 11:36:02

请参阅此问题的答案 - http://stackoverflow.com/questions/7579237/whats-the-difference-between-subscribeon-and-lookeon。看起来'SubscribeOnDispatcher'不一定将您对'ItemCollection.Add'的调用封送回UI线程。 – 2013-02-16 13:40:42

您需要调用ObserveOnDispatcher而不是SubscribeOnDispatcher。见here。

来源

2013-02-17 13:10:19 ozczecho

'System.Reactive.Concurrency.Scheduler.NewThread'已过时

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