...
   @{Html.RenderPartial("_social");}
 
    <br/><br/><br/>
    @if (ViewBag.IDpr !=0) { @Ajax.ActionLink("<<Предыдущая запись", "AphorismDetail", "Record", new {id = ViewBag.IDpr, partial = 1 }, new AjaxOptions { UpdateTargetId = "Curr" }) }
    @if (ViewBag.IDne != 0)
    {
        @:......
        @Ajax.ActionLink("Следующая запись>>",  "AphorismDetail", "Record", new {id = ViewBag.IDne, partial = 1 }, new AjaxOptions { UpdateTargetId = "Curr" }) ;
    }  
    <br/><br/><br/>
 
    @{Html.RenderPartial("_comments");}
...

//ЦИТАТА ДЕТАЛЬНО
        public ActionResult AphorismDetail(int id, int partial = 0)
        {
            int[] IDs = recordsManager.PrevNextRec(id);
            ViewBag.IDpr  = IDs [0];
            ViewBag.IDne = IDs [1];
 
            if (partial == 0) { return View("aphorism", recordsManager.GetRecordById(id)); }
            else { return PartialView("aphorism", recordsManager.GetRecordById(id)); }               
        }