ImportImageViewModel.txt

private string _imageCaption;

        public string ImageComment
        {
            get { return _imageCaption; }
            set { SetProperty(ref _imageCaption, value); }
        }
        public DelegateCommand SelectImageCommand { get; private set; }
        public ObservableCollection<ImageDetails> Images { get; private set; }
        public DelegateCommand ClearImageCommand { get; private set; }
        public ImportImageViewModel()
        {
            Images = new ObservableCollection<ImageDetails>();
            SelectImageCommand = new DelegateCommand(OnSetImage);
            ClearImageCommand = new DelegateCommand(OnClearImages);
        }

        private void OnClearImages()
        {
            Images.Clear();
        }

        private void OnSetImage()
        {
            var ofd = new OpenFileDialog();
            ofd.Filter = "PNG (*.png)|*png|JPG (*.jpg)|*.jpg";
            if(ofd.ShowDialog() == true)
            {
                Images.Add(new ImageDetails { Caption = ImageComment, FileName = ofd.FileName });
            }
        }
    }
    public class ImageDetails
    {
        public string Caption { get; set; }
        public string FileName { get; set; }
    }