PageableImageControlViewModel_1.cs

private SmartObservableCollection<ImageViewModel> _images;

/// <summary>
/// Gets or sets the image collection.
/// </summary>
/// <value>
/// The image collection.
/// </value>
public SmartObservableCollection<ImageViewModel> Images
{
    get
    {
        if (_images == null)
        {
            _images = new SmartObservableCollection<ImageViewModel>();
            _images.CollectionChanged += (s, e) => OnPropertyChanged();
        }
        return _images;
    }
    set
    {
        if (_images != value)
        {
            _images = value;
            OnPropertyChanged();
            InitPageableImages();
        }
    }
}

private IImageRepository _repository;

/// <summary>
/// Sets the image repository.
/// </summary>
/// <param name="repository">The repository.</param>
public void SetImageRepository(IImageRepository repository)
{
    _repository = repository;
    Images = new SmartObservableCollection<ImageViewModel>();

    var imageList = _repository.GetImages();

    if (imageList == null)
    {
        UseDefaultImage();
        return;
    }

    foreach (var image in imageList)
    {
        Images.Add(new ImageViewModel(image));
    }

    if (_images.Count > 0)
    {
        InitPageableImages();
        MainImageSource = new BitmapImage(new Uri(PageableImages[0].ItemImage.Source.ToString()));
    }
    else
    {
        UseDefaultImage();
    }
}