RenderRazorViewToString extension

gistfile1.cs

// credit: http://stackoverflow.com/a/2759898/487544
public static string RenderRazorViewToString(this Controller controller, string viewName, object model)
{
    controller.ViewData.Model = model;
    using (var sw = new StringWriter())
    {
        var viewResult = ViewEngines.Engines.FindPartialView(controller.ControllerContext, viewName);
        var viewContext = new ViewContext(controller.ControllerContext, viewResult.View, controller.ViewData, controller.TempData, sw);
        viewResult.View.Render(viewContext, sw);
        viewResult.ViewEngine.ReleaseView(controller.ControllerContext, viewResult.View);
        return sw.GetStringBuilder().ToString();
    }
}