public IEnumerable <Article> GetCat(string catid)
{
IEnumerable <Article> list = Comercial.ListArticlesCategory(catid);
//if (cat.Equals("category"))
//{
if (list == null)
{
throw new HttpResponseException(
Request.CreateResponse(HttpStatusCode.NotFound));
}
else
{
return(list);
}
//}
//return null;
}