Ninject: How to bind an open generic with more than one type argument?

Question

I'm using Ninject 2.2, and I'm trying to setup a binding for an open generic that takes two type arguments. According to this answer by qes, the correct syntax to bind IRepository<T> to Repository<T> is this:

Bind(typeof(IRepository<>)).To(typeof(Repository<>));

The above syntax works perfectly if IRepository takes just one type argument, but breaks if it takes more (gives a Using the generic type 'Repository<T,U>' requires 2 type arguments compile time error.)

How can I bind IRepository<T,U> to Repository<T,U>?

Thanks.

Walz

Answer 1

Bind(typeof(IRepository<,>)).To(typeof(Repository<,>));

Try that....

Kiwi

Awesome! I would have never figured that out myself. Thanks a lot! – Walz

My hero! It's so simple once you work out what to ask Google! – Mauer

You rule! Never seen that kind of syntax before. Was just about to spoil my code with unnecessary generic types when I fortunately hit this post – Unprofitable

You can also go from single type to double type, i.e. Bind(typeof(IRepo<>)).To(typeof(Repo<,>)); etc. – Pierro

Actually, when I try to bind from single type param to double type params, i get some "The number of generic arguments provided doesn't equal the arity of the generic type definition." exception – Growl