使用Ninject工厂方法将IEnumerable注入构造函数 [英] Injecting an IEnumerable into a constructor with a Ninject factory method

问题描述

我正在尝试使用Ninject将IEnumerable注入到构造函数中.

I'm trying to inject an IEnumerable into a constructor with Ninject.

我的构造函数如下:

public MatrixViewModel(IEnumerable<FooViewModel> fooViewModels)
{
    _fooViewModels = fooViewModels;
}

我的Ninject模块如下所示:

My Ninject module looks like this:

public class MainModule : NinjectModule
{
    public override void Load()
    {
        Bind<IEnumerable<FooViewModel>>()
            .ToMethod(context => GetFooViewModels())
            .InSingletonScope(); // this binding is not working
    }

    private IEnumerable<FooViewModel> GetFooViewModels()
    {
        // returns a bunch of foo view models
    }
}

这似乎不起作用.我没有任何错误. Ninject从未使用过绑定，传递给构造函数的值基本上只是一个空的默认值.

This doesn't seem to be working. I don't get any error. Ninject just doesn't ever use the binding, and the value that is passed into the constructor is basically just an empty default value.

如何使用Ninject注入IEnumerable?

How do you inject an IEnumerable with Ninject?

修改

有关我的工厂方法的更多详细信息:

More details on my factory method:

private IEnumerable<FooViewModel> GetFooViewModels()
{
    return new[]
    {
        new FooViewModel
        {
            Bar = new BarViewModel
            {
                X = 1,
                Y = 2
            },
            Misc = "Hello"
        },
        new FooViewModel
        {
            Bar = new BarViewModel
            {
                X = 3,
                Y = 4
            },
            Misc = "Goodbye"
        },
        // etc.....
    };
}

编辑2

根据Remo的回答，一种可能的解决方案是使用一个foreach循环来一次绑定一个视图模型:

Based on Remo's answer, one possible solution is to use a foreach loop to bind the view models one at a time:

foreach (var fooViewModel in GetFooViewModels())
{
    Bind<FooViewModel>().ToConstant(fooViewModel);
}

推荐答案

根据Remo的回答，一种可能的解决方案是使用foreach循环一次绑定一个视图模型:

Based on Remo's answer, one possible solution is to use a foreach loop to bind the view models one at a time:

foreach (var fooViewModel in GetFooViewModels())
{
    Bind<FooViewModel>().ToConstant(fooViewModel);
}

这篇关于使用Ninject工厂方法将IEnumerable注入构造函数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IT屋！