public void RemoveBookmark(long userBookmarkID)
        {
            var bookmark = _service.GetBookmarkByID(userBookmarkID);

            if (!CommunitySecurity.IsAdministrator() && !bookmark.UserCreatorID.Equals(SecurityContext.CurrentAccount.ID))
            {
                throw new SecurityException();
            }
            var userBookmarks = _service.GetUserBookmarks(bookmark);

            foreach (var userBookmark in userBookmarks)
            {
                RemoveBookmarkFromFavourite(userBookmark.BookmarkID, userBookmark.UserID);
            }
        }
 protected void Page_Load(object sender, EventArgs e)
 {
     IsAdmin  = CommunitySecurity.IsAdministrator();
     IsAuthor = Author.Equals(SecurityContext.CurrentAccount.ID);
 }