从LongListMultiSelector中的缩略图中检索原始图像

Question

i am using a LongListMultiSelector to display all the images from the Media Library. To prevent running out of memory , i used the following ode to display thumbnails.. this.DataContext = this;

        var Pictures = ml.Pictures;
        foreach (var item in Pictures)
        {
            ListOfImages.Add(PictureDecoder.DecodeJpeg(item.GetThumbnail()));
            name.Add(item.Name);

        }

ListOfImages is the list binded to the LongList.

i have attached the OnSelectionChanged event handler to determine the selected images by the user , however i only get the thumbnails from their , how do i get the original image from it ??i want to store the original image to the isolated storage.

Answer 1

You need to have identifier for selected image (the name for example), then you can search for the actual image from MediaLibrary by name :

var picture = media.Pictures
                   .FirstOrDefault(p => p.Name.Contains("the_name.jpg"));

if (picture != null)
{
    // Picture found
    var originalImage = picture.GetImage();
    // do something with original image
}