public Boolean addNews(SiteNewsModel siteNewsModel)
{
geekinsidekmsEntities context = new geekinsidekmsEntities();
DAL.SiteNews siteNews = new DAL.SiteNews();
siteNews.Title = siteNewsModel.Title;
siteNews.NewsContent = siteNewsModel.NewsContent;
siteNews.PubTime = siteNewsModel.PubTime;
siteNews.IsOnTop = siteNewsModel.IsOnTop;
context.AddToSiteNews(siteNews);
context.SaveChanges();
return true;
}