CODEWITHSUNDEEP
c#genericstuples
James Morrison
James Morrison

Reputation: 2122

C# .NET Core, function taking a list of tuple values with generic types

I've been reading around and can't seem to find a way to allow a function to take a generic tuple at all but also haven't found anywhere that says a Tuple can't take generic parameters, is this at all possible in C#? Below is the type of function I want to define (obviously doesn't work).

public static TController CreateControllerWithAuthenticatedContextsAndResponseMessages<TController>(
        List<Tuple<TRequest, TResponse, Func<TResponse>, Expression<Func<TRequest, bool>>>> genList, 
        string policyName)
        where TController : class
        where TRequest : class
        where TResponse : class
    {

    }

Is this possible to do at all? Otherwise is there another way to take these parameters? The reason it's this complicated is because I want to make sure the user (us) can't pass the wrong number of each parameter as it needs one of each.

EDIT: sorry, should've been clearer. TRequest and TResponse need to be lists of generics because they'll be something like AddedThis, AddedThat. With result functions and expressions to match. This is for mocking a controller for testing.

Upvotes: 0

Views: 340

Answers (1)

Patrick Hofman
Patrick Hofman

Reputation: 156918

Yes, it does work, but you have to define all the generic type parameters in the method's signature:

public static TController CreateControllerWithAuthenticatedContextsAndResponseMessages
    <TController, TRequest, TResponse>
( ... )

Numbers 2 and 3 were missing.

Upvotes: 1

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