public void UpdateID(int postid)
 {
     Debug.Assert(ProductId != 0);
     using (var repository = new TradelrRepository())
     {
         var w = repository.GetProduct(ProductId).wordpressPosts;
         if (w == null)
         {
             w = new wordpressPost();
             repository.AddWordpressPost(w);
         }
         w.productid = ProductId;
         w.postid    = postid;
         repository.Save();
     }
 }