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Question

我与统一注册一个实例是这样的：

ContentSlideControlsEntity contentSlideControlsEntity = new ContentSlideControlsEntity(new Queue<uint>()); 
     container.RegisterInstance(typeof(ContentSlideControlsEntity), "contentSlideControlsEntity", contentSlideControlsEntity); 

然后，我只是想reslove它：

ContentSlideControlsEntity contentSlideControlsEntity2 = container.Resolve<ContentSlideControlsEntity>(); 

，但我得到以下运行时错误：

Microsoft.Practices.Unity.ResolutionFailedException: 'Resolution of the dependency failed, type = "MSDataLayer.Entities.ContentSlideControlsEntity", name = "(none)".

Exception occurred while: while resolving.

Exception is: InvalidOperationException - The type Queue`1 has multiple constructors of length 1. Unable to disambiguate.

---

At the time of the exception, the container was:

Resolving MSDataLayer.Entities.ContentSlideControlsEntity,(none)

Resolving parameter "slideIDQueue" of constructor MSDataLayer.Entities.ContentSlideControlsEntity(System.Collections.Generic.Queue`1[[System.UInt32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]] slideIDQueue)

Resolving System.Collections.Generic.Queue`1[System.UInt32],(none) 

Answer 1

您将您的实例注册为已命名的注册，但您正在解析未命名的注册（其中d不存在）。

container.RegisterInstance(typeof(ContentSlideControlsEntity), "contentSlideControlsEntity", contentSlideControlsEntity); 
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 

你有2种选择：

1）不要把它注册为一个名为registraion

container.RegisterInstance(typeof(ContentSlideControlsEntity), contentSlideControlsEntity); 

2）名称

container.Resolve<ContentSlideControlsEntity>("contentSlideControlsEntity"); 

解决问题