I have been trying to get an entry form, popup from a button click within a document view. I can get the surface controller instantiated within a template like so:-

@using ctrevents.Controllers

@using ctrevents.Models

@inherits Umbraco.Web.Mvc.UmbracoTemplatePage    

@Html.Partial("RenderEventEntry", new EventEntryFormViewModel ())   

(COULDN'T GET THIS TO WORK WITH SURFACE CONTROLLER INCLUDED?)

This appears to work fine, but I would like to call this from a button click on an event item page.

need to replace below with HTML.Action to point to surface controller with eventitem id

   <div class="col-sm-3">

                            <a href="#" class="btn btn-warning btn-xs "><i class="fa fa-book"></i> book!</a>

                        </div>

Any ideas would be greatly appreciated!