CODEWITHSUNDEEP
c#genericsinterfaceradix
RubenHerman
RubenHerman

Reputation: 1854

Generic baseclass with generic interface

I want to create a baseclass, which has a few default methods. This baseclass should use a generic interface.

Is this possible? (because code-example below doesn't compile, the problem lies within T1,T2,T3 -> first line)

public abstract class ServiceBase<T> where T: IService<T1,T2,T3>
{
    public abstract IEnumerable<T3> Search(T1 query);

    public abstract T3 Add(T2 input);

    public bool Monitor()
    {
        return true;
    }
}

The reason I want to use is, is for a service, I can type:

public class WhatEverService : ServiceBase<IWhatEverService>

With IWhatEverService inheriting from IService<T1,T2,T3> (with T1,T2,T3 some different types)

FYI:

public interface IWhatEverService: IService<WhatEverType1, WhatEverType2, WhatEverType3>

Upvotes: 1

Views: 118

Answers (1)

Mehmet Ataş
Mehmet Ataş

Reputation: 11549

You have not told compiler what T1, T2 and T3 are and it is not able to infer these types from usage.

public abstract class ServiceBase<T,T1,T2,T3> where T : IService<T1,T2,T3>

Upvotes: 2

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