private void addOrRemoveBookmark(object obj)
        {
            bool processSuccessful = false;

            if (IsBookmarked)
            {
                processSuccessful = ClientDataManager.DeleteSingleBookMark(ActiveMagazine.Issue, ActivePageNumber);
            }
            else
            {
                processSuccessful = ClientDataManager.SaveSingleBookMark(ActiveMagazine.Issue, ActivePageNumber);
            }

            if (processSuccessful)
            {
                IsBookmarked = !IsBookmarked;
                ActiveMagazine.Pages[ActivePageIndex].IsBookMarked = IsBookmarked;
            }
        }
        private void addOrRemoveBookmark(object obj)
        {
            bool processSuccessful = false;

            if (IsBookmarked)
            {
                processSuccessful = ClientDataManager.DeleteSingleBookMark(activeMagazine.Issue, ActivePageNumber);
            }
            else
            {
                processSuccessful = ClientDataManager.SaveSingleBookMark(activeMagazine.Issue, ActivePageNumber);
            }

            if (processSuccessful)
            {
                IsBookmarked = !IsBookmarked;
                activeMagazine.Pages[ActivePageIndex].IsBookMarked = IsBookmarked;
                MessagingCenter.Send(this, Constants.ANIMATE_IMAGE_MESSAGEKEY);
            }
        }