public List <string> GetCategories()
    {
        List <string> categories = null;

        using (PhotoManagerContractClient proxy = new PhotoManagerContractClient())
        {
            categories = proxy.GetCategories();
        }
        return(categories);
    }
    public List <PhotoLink> GetPhotos()
    {
        List <PhotoLink> photos = null;

        using (PhotoManagerContractClient proxy = new PhotoManagerContractClient())
        {
            photos = proxy.GetPhotos();
        }
        return(photos);
    }
    public PhotoLink GetPhoto(int id)
    {
        PhotoLink photo = null;

        using (PhotoManagerContractClient proxy = new PhotoManagerContractClient())
        {
            photo = proxy.GetPhoto(id);
        }
        return(photo);
    }