NInject IBindingGenerator和ToProvider

问题描述

我创建了以下代码:

public class AddonsModule : Ninject.Modules.NinjectModule
{
    public override void Load()
    {
        this.Bind(b => b.FromAssembliesMatching("*")
            .SelectAllClasses()
            .InheritedFrom(typeof(UIExtensibility.AbstractAddon))
            .BindWith(new AddonBindingGenerator())
        );
    }

    private class AddonBindingGenerator : IBindingGenerator
    {

        public System.Collections.Generic.IEnumerable<Ninject.Syntax.IBindingWhenInNamedWithOrOnSyntax<object>> CreateBindings(System.Type type, Ninject.Syntax.IBindingRoot bindingRoot)
        {
            if (type.IsInterface || type.IsAbstract)
                yield break;

            yield return bindingRoot.Bind(type).ToProvider(typeof(UIExtensibility.AbstractAddon));
        }
    }

    private class AddonProvider : IProvider<UIExtensibility.AbstractAddon>
    {

        public object Create(IContext context)
        {
            return null;
        }

        public Type Type
        {
            get { throw new NotImplementedException(); }
        }
    }
}

AddonProvider似乎可以避免.永远不会执行.

AddonProvider seems be avoided. This is never performed.

当我表演时:kernel.GetAll<UIExtensibility.AbstractAddon>()，AddonProvider.Create方法从不执行.

When I perform:kernel.GetAll<UIExtensibility.AbstractAddon>(), AddonProvider.Create method is never performed.

你能告诉我怎么了吗?非常感谢您的帮助.

Could you tell me what's wrong?I'll appreciate a lot your help.

谢谢大家.

推荐答案

您正在将从typeof(UIExtensibility.AbstractAddon)继承的特定类型绑定到提供程序.例如，可能有一个class Foo : UIExtensibility.AbstractAddon.现在，您的约定绑定将转换为:

You're binding a specific type which inherits from typeof(UIExtensibility.AbstractAddon) to a provider. For example, there could be a class Foo : UIExtensibility.AbstractAddon.Now your convention binding translates to this:

Bind<Foo>().ToProvider<AddonProvider>();

现在，kernel.GetAll<UIExtensibility.AbstractAddon>()现在正在寻找像这样的绑定:

Now, kernel.GetAll<UIExtensibility.AbstractAddon>() however is looking for bindings made like:

Bind<UIExtensibility.AbstractAddon>().To...

修复

所以您需要做的就是更改行

Fix It

So what you need to do is change the line

bindingRoot.Bind(type).ToProvider(new AddonProvider());

收件人:

bindingRoot.Bind(typeof(UIExtensibility.AbstractAddon)).ToProvider<AddonProvider>();

此外

• 您所在的行object f = bindingRoot.Bind(type).ToProvider(new AddonProvider());从不返回绑定(object f).
• UIExtensibility.AbstractAddon是否实现IProvider?

Furthermore

• you're line object f = bindingRoot.Bind(type).ToProvider(new AddonProvider()); is never returning the binding (object f).
• does UIExtensibility.AbstractAddon implement IProvider?

这篇关于NInject IBindingGenerator和ToProvider的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！