private void detach_HtmlListingPages(HtmlListingPage entity)
		{
			this.SendPropertyChanging();
			entity.HTMLlisting2Group = null;
		}
 partial void UpdateHtmlListingPage(HtmlListingPage instance);
 partial void DeleteHtmlListingPage(HtmlListingPage instance);
 partial void InsertHtmlListingPage(HtmlListingPage instance);
 private void detach_HtmlListingPages(HtmlListingPage entity)
 {
     this.SendPropertyChanging();
     entity.HTMLlisting2Group = null;
 }
 partial void DeleteHtmlListingPage(HtmlListingPage instance);
 partial void UpdateHtmlListingPage(HtmlListingPage instance);
 partial void InsertHtmlListingPage(HtmlListingPage instance);