I have a partial view called ProductFilter.cshtml. It is in a view Products.cshtml and defined like so:

@{
    Html.RenderPartial("ProductFilter",new ProductFilterModel());
}

The ProductFilterModel looks like this:

public class ProductFilterModel
{
    public string Make { get; set; }
    public string Model { get; set; }
    public string Year { get; set; }
    public string Engine { get; set; }
}

I have a controller ProductFilterController that looks like this:

public class ProductFilterController : SurfaceController
{
    [HttpPost]
    public ActionResult SearchResults(
                   ProductFilterModel productFilterModel)
    {
        return View(productFilterModel);
    }
}

When I go to the Products page and click on search, I get the error that it excepts a RenderModel, but I am passing it a ProductFilterModel

My SearchResults.cshtml looks like this:

@model ProductFilterModel

@{
    Layout = "../Master.cshtml";
}

@Model.Engine

If I remove the Master, everything works, but I lose all styling.