AppController.cs

public class AppController: IApplicationController
{
  //other app controller stuff here

  public R Query<T,R>(T queryData)
  {
    R returnValue = default(R);
    IQuery<T,R> query = iocContainer.GetInstance<IQuery<T,R>>();
    if (query != null)
      returnValue = query.Query(T);
    return returnValue;
  }

  //other app controller stuff here
}

DisplayUsersPresenter.cs

public class DisplayUsersPresenter.cs
{
  private IApplicationController AppController{ get; set; }
  private IDisplayUsersView View{ get; set; }

  public SomeService(IDisplayUsersView view, IApplicationController appController)
  {
    View = view;
    AppController = appController;
  }

  public void GetAllUsers()
  {
    IList<User> users = AppController.Query<GetAllUsers, IList<User>>();
    View.ShowUsers(users);
  }
}

GetAllUsers.cs

public class GetAllUsers
{
  //empty class used as a marker to determine what query object should be executed
}

IQuery.cs

public interface IQuery<T,R>
{
  R Query(T queryData);
}

MyRepository.cs

public class MyRepository: IQuery<GetAllUsers, IList<User>>
{
  public IList<User> Query(GetAllUsers queryData)
  {
    IList<User> users = //retrieve all users from the database, here.;
    return users;
  }
}