public MenuBusiness() { if (context == null) { context = new ModelContext(); } }
public AuthorizeControlBusiness() { if (context == null) { context = new ModelContext(); } }
public SiteSettingBusiness() { if (context == null) { context = new ModelContext(); } }
public ArticleBusiness() { if (context == null) { context = new ModelContext(); } }
public LanguageBusiness() { if (context == null) { context = new ModelContext(); } }