asp.net-mvc-4 - 值不能为空。参数名称: view

Question

我试图将动态 View 渲染为字符串。我从 here 得到了这个想法它在本地运行良好，但在托管时出现以下错误。我的尝试是将字符串转换为字节以发送电子邮件

Value cannot be null. Parameter name: view

Controller

public ActionResult Index(int RegId)
    {
        try
        {
            var _mdlReceiptPdf = new ReceiptPdfVM
            {
                ...
                ...
            };

            string result = RazorViewToString.RenderRazorViewToString(this, Server.MapPath("~/Views/Shared/_Receipts.cshtml"), _mdlReceiptPdf);
            StringReader _sr = new StringReader(result);            

            return Json(result, JsonRequestBehavior.AllowGet);
        }
        catch (Exception ex)
        {
            return Json(ex.Message, JsonRequestBehavior.AllowGet);
        }          
    }

Util.cs

public static class RazorViewToString
    {

        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();
            }
        }

    }

Answer 1

我遇到了这个问题。就我而言，事实证明，部分 View 未上传到托管网站，因为在部分 View 的文件属性中，BuildAction 设置为无而不是内容