Render Razor For Email/Page

razor.render.cs

protected string GetRenderedPartial(string viewName, object model = null)
{
    using (var sw = new StringWriter())
    {
        if (ControllerContext != null)
        {
            var viewResult = ViewEngines.Engines.FindPartialView(ControllerContext, viewName);
            var viewContext = new ViewContext(ControllerContext, viewResult.View, new ViewDataDictionary(model), TempData, sw);
            viewResult.View.Render(viewContext, sw);
        }

        return sw.ToString();
    }
}