private void replyButtom_Click(object sender, RoutedEventArgs e)
        {
            tweetImage1.Source         = null;
            tweetImage2.Source         = null;
            tweetImage3.Source         = null;
            tweetImage4.Source         = null;
            tweetStackPanel.Visibility = Visibility.Hidden;

            var item = this.listView.SelectedItem as TweetClass.TweetInfo;

            if (item == null)
            {
                return;
            }
            else
            {
                tweet = new List <TweetClass.TweetInfo>();
                //var data = new Tweets();

                ReplyId       = item.Id;
                replyBox.Text = item.ScreenName + " ";
                replyStackPanel.Visibility = Visibility.Visible;



                tweet = data.replytweetinfo(item);

                replyView.ItemsSource = tweet;

                if (item.urls != null)
                {
                    urlView.ItemsSource = item.urls;
                }


                if (item.media != null)
                {
                    int media_num = item.media.Length;
                    //var media = item.media;
                    //int test = media.Length;
                    //replyBox.Text = item.media_number.ToString();
                    for (int n = 0; n < media_num; n++)
                    {
                        BitmapImage imageSource = new BitmapImage(item.media[n].MediaUrl);

                        switch (n)
                        {
                        case 0:
                            tweetImage1.Source = imageSource;

                            break;

                        case 1:
                            tweetImage2.Source = imageSource;
                            break;

                        case 2:
                            tweetImage3.Source = imageSource;
                            break;

                        case 3:
                            tweetImage4.Source = imageSource;
                            break;
                        }
                    }
                }

                replyBlock.Text = "Reply to " + item.ScreenName;
            }
        }