private void SetPictureStream()
{
var thumbnail = BitmapHelpers.CreateThumbnail(_file.Path, 500, 500, Guid.NewGuid().ToString());
var fileStream = new FileStream(thumbnail, FileMode.Open);
var streamContent = new StreamContent(fileStream);
_app.SetPictureStream(streamContent);
}
private void DisplayThumbnail()
{
var thumbnail = BitmapHelpers.CreateThumbnail(_file.Path, 450, 450);
_app.ShowPicture(thumbnail);
}