Asp.net MVC ViewEngineResult + 嵌入式视图

我有一个工作函数，它向我返回一个已处理的视图（或部分视图）

我调用此函数将虚拟路径发送到视图，例如：

string viewHtml = GetViewPageHtml(this, model, "~/Views/PartialView.cshtml");
public static string GetViewPageHtml(Controller controller, object model, string viewName)
{
    ViewEngineResult result = ViewEngines.Engines.FindPartialView(controller.ControllerContext, viewName);
    if (result.View == null)
        throw new Exception(string.Format("View Page {0} was not found", viewName));
    controller.ViewData.Model = model;
    StringBuilder sb = new StringBuilder();
    using (StringWriter sw = new StringWriter(sb))
    {
        using (System.Web.UI.HtmlTextWriter output = new System.Web.UI.HtmlTextWriter(sw))
        {
            ViewContext viewContext = new ViewContext(controller.ControllerContext, result.View, controller.ViewData, controller.TempData, output);
            result.View.Render(viewContext, output);
        }
    }
    return sb.ToString();
}

是否有任何解决方案可以使此功能查找嵌入式视图？

如果我有一个嵌入式视图并调用相同的函数，它找不到页面：

// not working
string viewHtml = GetViewPageHtml(this, model, "Application1.Views.EmbededPartialView.cshtml");