1 try
 2             {
 3                 imageFolder = "images";//wenjianjia mingcheng
 4                 var isoFile = IsolatedStorageFile.GetUserStoreForApplication();
 5                 if (!isoFile.DirectoryExists(imageFolder))
 6                 {
 7                     isoFile.CreateDirectory(imageFolder);
 8                 }
 9                 string filePath = System.IO.Path.Combine(imageFolder, imageFileName);
10                 var imageStream = isoFile.OpenFile(
11                    filePath, FileMode.Open, FileAccess.Read);
12                 {
13                     BitmapImage imageSource = new BitmapImage();
14                     imageSource.SetSource(imageStream);
15                     imageStream.Close();
16                     imageStream.Dispose();
17                     isoFile.Dispose();
18                     return imageSource;
19                 }
20             }
21             catch (Exception e) { string str = e.Message; return null; }