private void AppendContent(string storageName)
        {
            //DateTime trackLoadingTime = DateTime.Now;

            var channelItem = MiscHelpers.GetChannelItemFromIsolatedStorage(storageName + ".xml");

            //ToDo: Add case if file not exsit, then fetch manually
            //...

                //ToDO: Check null
                if (channelItem == null) return;

                if ("search".Equals(_categoryName))
                {
                    HeaderBox.Text = channelItem.FeedTitle;
                    defaultPhoto = "http://s2.googleusercontent.com/s2/favicons?domain=" + channelItem.FeedLink;
                    //HeaderIcon.Source = new BitmapImage(new Uri(icon, UriKind.RelativeOrAbsolute));
                }
                else if ("favourite".Equals(_categoryName) || "savelater".Equals(_categoryName) || "historicalview".Equals(_categoryName))
                {
                    defaultPhoto = "http://s2.googleusercontent.com/s2/favicons?domain=" + channelItem.FeedLink;
                    //HeaderIcon.Source = new BitmapImage(new Uri(icon, UriKind.RelativeOrAbsolute));
                }

                //Change add icon to remove icon if true
                if (storageName.Contains("fbd-channel-"))
                {
                    var homeTileList = MiscHelpers.GetItemFromIsolatedStorage<List<PinTile>>("fbd-pintiles.xml");
                    var decodedStorageName = HttpUtility.UrlDecode(storageName);
                    var existingHomeTile = GeneralHelper.GetHomeTile(decodedStorageName, homeTileList);
                    if (existingHomeTile != null)
                    {
                        var button = (ApplicationBarIconButton)ApplicationBar.Buttons[1];
                        button.IconUri = new Uri("/Images/General/AppBar/btn_unsubscibe_w.png", UriKind.RelativeOrAbsolute);
                        _isSubscribed = true;
                    }
                }
                if (HomePagePinTiles.IsFull() && _isSubscribed == false)
                {
                    var button = (ApplicationBarIconButton)ApplicationBar.Buttons[1];
                    button.IsEnabled = false;
                }

                _numOfNewNewsItem = channelItem.NumOfNewNewsItems;

                //var defaultPhoto = _cf[_categoryName]["photo_default"];

                var newsList = channelItem.NewsItems;

                if (newsList != null && newsList.Count > 0)
                {
                    //_firstItem = newsList[0];

                    var favouriteChannelItem = MiscHelpers.GetChannelItemFromIsolatedStorage("fbd-favorites.xml");
                    var readLaterChannelItem = MiscHelpers.GetChannelItemFromIsolatedStorage("fbd-readlater.xml");

                    var newsItems = new ObservableCollection<DataModel.UIContextItem>();

                    if ("historicalview".Equals(_categoryName))
                    {
                        newsList.Reverse();
                    }

                    foreach (var newsItem in newsList)
                    {
                        //Set 1st-item for bookmark/pin if item contains image
                        if (_firstItem == null && newsItem.NewsImages != null
                            && newsItem.NewsImages.Count > 0 && newsItem.NewsImages[0] != null)
                        {
                            _firstItem = newsItem;
                        }

                        var uItem = MiscHelpers.CreateUINewsItem(newsItem);

                        uItem.ImageFavourite = _m.IsNewsItemInList(favouriteChannelItem, uItem.Tag.ToString())
                                                   ? _m.imageFavouriteOn
                                                   : _m.imageFavouriteOff;
                        uItem.ImageReadLater = _m.IsNewsItemInList(readLaterChannelItem, uItem.Tag.ToString())
                                                   ? _m.imageReadLaterOn
                                                   : _m.imageReadLaterOff;

                        //uItem.BackgroundColor = (uItem.IsNew)
                        //                            ? new SolidColorBrush(Colors.Yellow)
                        //                            : new SolidColorBrush(Colors.Transparent);

                        if (newsItem.NewsImages != null && newsItem.NewsImages.Count > 0 &&
                            newsItem.NewsImages[0] != null)
                        {
                            Analytics.GetInstance().TrackHasImage("newslist-hasImageYes", "y");
                            var imageB = new BitmapImage(new Uri(newsItem.NewsImages[0], UriKind.Absolute))
                                {
                                    CreateOptions = BitmapCreateOptions.BackgroundCreation
                                };
                            imageB.ImageOpened += delegate
                                {
                                    uItem.NewsImageSource = imageB;
                                };
                        }
                        else
                        {
                            Analytics.GetInstance().TrackHasImage("newslist-hasImageNo", "n");
                        }

                        var image = new BitmapImage(new Uri(defaultPhoto, UriKind.RelativeOrAbsolute));
                        uItem.NewsImageSource = image;
                        newsItems.Add(uItem);
                    }

                    if (_firstItem == null)
                    {
                        _firstItem = newsList[0];
                    }

                    NewsListBox.ItemsSource = newsItems;

                    if (_adsTimer != null)
                    {
                        _adsTimer.Stop();
                    }
                }
                else
                {
                    //ToDo: Handle empty list
                }
                //Analytics.GetInstance().TrackLoadingTime("NewsList-AppendContent", trackLoadingTime);
        }
        private void AppendCategoryContent(string storageName)
        {
            //DateTime trackLoadingTime = DateTime.Now;

            var categoryItem = MiscHelpers.GetCatergoryItemFromIsolatedStorage(storageName + ".xml");

            //ToDo: Add case if file not exsit, then fetch manually
            if (categoryItem == null) return;

            //var defaultPhoto = _cf[_categoryName]["photo_default"];

            var channelList = categoryItem.ChannelItems;

            if (channelList != null && channelList.Count > 0)
            {
                //_firstItem = channelList[0].NewsItems[0];
                if ("search".Equals(_categoryName))
                {
                    HeaderBox.Text = channelList[0].FeedTitle;
                    defaultPhoto = "http://s2.googleusercontent.com/s2/favicons?domain=" + channelList[0].FeedLink;
                    //HeaderIcon.Source = new BitmapImage(new Uri(icon, UriKind.RelativeOrAbsolute));
                }
                else if ("favourite".Equals(_categoryName) || "savelater".Equals(_categoryName) || "historicalview".Equals(_categoryName))
                {
                    defaultPhoto = "http://s2.googleusercontent.com/s2/favicons?domain=" + channelList[0].FeedLink;
                    //HeaderIcon.Source = new BitmapImage(new Uri(icon, UriKind.RelativeOrAbsolute));
                }

                var favouriteChannelItem = MiscHelpers.GetChannelItemFromIsolatedStorage("fbd-favorites.xml");
                var readLaterChannelItem = MiscHelpers.GetChannelItemFromIsolatedStorage("fbd-readlater.xml");

                //var newsItems = new ObservableCollection<DataModel.UIContextItem>();
                DataModel.ContextItem tempFirstItem = null;

                foreach (var item in channelList)
                {
                    if (item.NewsItems != null && item.NewsItems.Count > 0)
                    {
                        if (giantCategoryitem != null)
                        {
                            giantCategoryitem.ChannelItems.Add(item);
                        }

                        Dispatcher.BeginInvoke(() =>
                            {
                                DataModel.NewsItem newsItem = item.NewsItems[0];

                                //Set 1st-item for bookmark/pin if item contains image
                                if (_firstItem == null && newsItem.NewsImages != null
                                    && newsItem.NewsImages.Count > 0 && newsItem.NewsImages[0] != null)
                                {
                                    _firstItem = newsItem;
                                }
                                tempFirstItem = newsItem;

                                var uItem = MiscHelpers.CreateUINewsItem(newsItem);

                                uItem.ImageFavourite = _m.IsNewsItemInList(favouriteChannelItem, uItem.Tag.ToString()) ?
                                    _m.imageFavouriteOn : _m.imageFavouriteOff;
                                uItem.ImageReadLater = _m.IsNewsItemInList(readLaterChannelItem, uItem.Tag.ToString()) ?
                                    _m.imageReadLaterOn : _m.imageReadLaterOff;

                                if (item.NewsImages != null && item.NewsImages.Count > 0 &&
                                            item.NewsImages[0] != null)
                                {
                                    Analytics.GetInstance().TrackHasImage("newslist-hasImageYes", "y");
                                    var imageB = new BitmapImage(new Uri(item.NewsImages[0], UriKind.Absolute))
                                    {
                                        CreateOptions = BitmapCreateOptions.BackgroundCreation
                                    };
                                    imageB.ImageOpened += delegate
                                    {
                                        uItem.NewsImageSource = imageB;
                                    };
                                }
                                else
                                {
                                    Analytics.GetInstance().TrackHasImage("newslist-hasImageNo", "n");
                                }

                                var image = new BitmapImage(new Uri(defaultPhoto, UriKind.RelativeOrAbsolute));
                                uItem.NewsImageSource = image;

                                _ctgyNewsItems.Add(uItem);
                            });

                    }
                }

                if (_firstItem == null)
                {
                    _firstItem = tempFirstItem;
                }

                //NewsListBox.ItemsSource = _ctgyNewsItems;
            }
            else
            {
                //ToDo: Handle empty list
            }

            if (giantCategoryitem != null)
            {
                MiscHelpers.SaveDataToIsolatedStorage("fbd-giant.xml", giantCategoryitem,
                                                      typeof (DataModel.CategoryItem), FileMode.Create);
            }
            //Analytics.GetInstance().TrackLoadingTime("NewsList-AppendCategoryContent", trackLoadingTime);
        }