懒＆LT;＆GT; Ninject注入 [英] Lazy<> Ninject Injection

问题描述

我用ninject框架。在我的code我有一个懒惰的对象。我可以创建一个实例，但是当我打电话value属性我得到一个例外。

 私人懒＆LT; IPsoriasisReportUserControl＆GT; psoriasisReportUserControl;

[注入]
    公共懒＆LT; IPsoriasisReportUserControl＆GT; PsoriasisReportUserControl
    {
        {返回psoriasisReportUserControl; }
        集合{psoriasisReportUserControl =价值; }
    }
 

我

  

该延迟初始化类型不具有公共，无参数   构造

异常，因为注入不注入方法到构造。我想我必须写一个方法是什么创建一个新的实例绑定。

解决方案

 绑定（typeof运算（懒惰＆LT; IPsoriasisReportUserControl＆GT;））ToMethod（。
            CTX =＆GT;新的懒惰＆LT; IPsoriasisReportUserControl＆GT;（（）=＆GT;
                  Kernel.Get＆其中; IPsoriasisReportUserControl＆GT;（）））;
 

I use ninject framework. In my code I have a Lazy object. I can create an instance, but when I call the value property I got an exception.

 private Lazy<IPsoriasisReportUserControl> psoriasisReportUserControl;

[Inject]
    public Lazy<IPsoriasisReportUserControl> PsoriasisReportUserControl
    {
        get { return psoriasisReportUserControl; }
        set { psoriasisReportUserControl = value; }
    }

I got

The lazily-initialized type does not have a public, parameterless constructor

exception because the injection does not inject the method into the constructor. I think I have to write a method to the bind what Creates a new instance.

解决方案

Bind(typeof (Lazy<IPsoriasisReportUserControl>)).ToMethod(
            ctx => new Lazy<IPsoriasisReportUserControl>(() =>
                  Kernel.Get<IPsoriasisReportUserControl>()));

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