Question

我有一个方法可以将我的html转换为字符串以便导出为PDF 只有我需要将我的html（View）转换为字符串才能导出为PDF

代码：

 public string RenderViewToString(Controller controller, string viewName, object viewData)
    {
        var renderedView = new StringBuilder();
        using (var responseWriter = new StringWriter(renderedView))
        {
            var fakeResponse = new HttpResponse(responseWriter);
            var fakeContext = new HttpContext(HttpContext.Current.Request, fakeResponse);
            var fakeControllerContext = new ControllerContext(new HttpContextWrapper(fakeContext), controller.ControllerContext.RouteData, controller.ControllerContext.Controller);

            var oldContext = HttpContext.Current;
            HttpContext.Current = fakeContext;

            using (var viewPage = new ViewPage())
            {
                var html = new HtmlHelper(CreateViewContext(responseWriter, fakeControllerContext), viewPage);

                html.RenderPartial(viewName, viewData);
                HttpContext.Current = oldContext;
            }
        }

        return renderedView.ToString();
    }

但是该值不会查看我的ViewBag：

   ViewBag.Email = usuario.strUsuarioEmail;
   ViewBag.Nome = usuario.strUsuarioNome;

代码导出PDF：

      public ActionResult EventoVisualizarPDF()
    {
        HttpClient client = new HttpClient();
        client.BaseAddress = new Uri(ConfigurationManager.AppSettings["UrlAPI"]);
        client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

        var id = Session["intCodigoGrupoUsuario"];
        var intUsuarioId = Session["intUsuarioId"];
        string url = "";

        url = "api/usuario/GetBuscaUsuario/" + intUsuarioId;

        HttpResponseMessage resposta = client.GetAsync(url).Result;
        if (resposta.IsSuccessStatusCode)
        {
            var usuario = resposta.Content.ReadAsAsync<Usuario>().Result;
            ViewBag.Email = usuario.strUsuarioEmail;
            ViewBag.Nome = usuario.strUsuarioNome;
        }

        url = "api/evento/GetEventoByUsuario/" + id;

        HttpResponseMessage response = client.GetAsync(url).Result;

        if (response.IsSuccessStatusCode)
        {
            var eventos = response.Content.ReadAsAsync<IEnumerable<Evento>>().Result;

            return this.ViewPdf("Customer report", "RelatorioEventoPDF", eventos.OrderBy(m => m.strEventoCodigo));

        }
        else
        {
            string msg = response.IsSuccessStatusCode.ToString();
            throw new Exception(msg);
        }
    }

如何在视图中从ViewBag中检索值？

Answer 1

如果您熟悉blob storage in Azure，则可以将ViewBag视为同一抽象类型的数据存储。

我假设你要输出这些值，以便它们可以被你的视图使用 - ＆gt; PDF转换方法，您在视图中所需要的只是：

<label id="vbEmail">@ViewBag.Email</label>

<label id="vbNome">@ViewBag.Nome</label>

这将输出您在控制器中设置的值为HTML。

如何在mvc中传递ViewBag for View的值

1 个答案: