Design to avoid type casting in derived classes?

Question

public interface IBasePresenter
{
}
public interface IJobViewPresenter : IBasePresenter
{
}
public interface IActivityViewPresenter : IBasePresenter
{
}

public clas         


        

Answer 1

This is a job for polymorphism.

public interface IBasePresenter
{
}
public interface IJobViewPresenter : IBasePresenter
{
}
public interface IActivityViewPresenter : IBasePresenter
{
}

public class BaseView : IBasePresenter
{
}

public class JobView : BaseView, IJobViewPresenter
{
}

public class ActivityView : BaseView, IActivityViewPresenter
{
}