System.Core抛出的“代码应该无法访问” [英] 'Code supposed to be unreachable' thrown by System.Core

问题描述

我遇到一个异常，当在代码下面执行时，来自System.Core的消息'System.InvalidOperationException：Code that is unreachable'

I've got an exception with the message 'System.InvalidOperationException: Code supposed to be unreachable' originating from System.Core when performing underneath code

 

public ushort RemoveProvider(ulong providerId)
{
  //make sure the provider isn't referenced by any device
  var refDevices = (from device in DataContext.Linq<Device>()
               where device.Active && device.Providers.Select(x => x.ID).Contains(providerId)
               select device).ToList();
  ....
}

推荐答案

如果执行underbeath代码，一切工作正常

If executing underbeath code, everything works fine

var refDevices = (from device in DataContext.Linq<Device>().ToList()
              where device.Active && device.Providers.Select(x => x.ID).ToList().Contains(providerId)
              select device).ToList();

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