无法在Windows Phone列表视图中显示捕获的图像

Question

我试图在windows phone listview中显示捕获的图像，以便使用后台代理上传。但是当cameracapturedtask完成时，应用程序将在app.xaml.cs中停用。当我从Gallery上传图像时，同样的功能正常工作。我在下面提供了我的代码。如果有任何解决方案，请提供帮助。

 private void Camera_Click(object sender, RoutedEventArgs e)
    {

        cmb.Dismiss();
        CameraCaptureTask cameraCapture = new CameraCaptureTask();

        cameraCapture.Completed += new EventHandler<PhotoResult>(cameraCaptureTask_Completed);
        cameraCapture.Show();

    }



 private void cameraCaptureTask_Completed(object sender, PhotoResult e)
    {
        if (e.TaskResult == TaskResult.OK)
        {

            string filename = e.OriginalFileName;
            var listSplit = filename.Split('\\');
            int i = listSplit.Length;

            string name = listSplit[i - 1];
            PhotoResult photoResult = e;

            j = 1;
            //sendImgRequest(name, e);

            BitmapImage bmp = new BitmapImage();
            bmp.SetSource(e.ChosenPhoto);

            arrfilename.Add(filename);
            //arrimg.Add(bmp);
            arrstream.Add(e.ChosenPhoto);
            arrtext.Add("Photo");

            using (var isostore = IsolatedStorageFile.GetUserStoreForApplication())
            {

                var wb = new WriteableBitmap(bmp);
                using (var isoFileStream = isostore.CreateFile(name))
                    wb.SaveJpeg(isoFileStream, wb.PixelWidth, wb.PixelHeight, 0, 100);

            }


            newimgdata.Add(new imgdata { image = bmp, text = "Photo", filename = name });
            lstbox.ItemsSource = newimgdata;



        }
    }