使用Ninject绑定到List <T>类型的已定义对象

Question

How can I do it with Ninject

var lst=new List<IAnimal>();
lst.Add(dog);
lst.Add(cat);

kernel.Bind<List<IAnimal>>().ToInstance(lst); 

What shall I use Instead of ToInstance() as Ninject doesn't have this method?

Answer 1

Looks like you can use ToConstant() :

kernel.Bind<List<IAnimal>>().ToConstant(lst);

Though you may want to consider binding IList<IAnimal> rather than List<IAnimal> .

EDIT: per your comment below

ToMethod is another option, depending on your requirements. This lets you use a Factory approach, where you can return a different instance based on external factors. For example:

kernel.Bind<IList<IAnimal>>().ToMethod(c => Helpers.IsDark ? return _nocturnalAnimals : return _allAnimals);