Question

我有pdfExport类，我生成一个pdf。在这个课程中我有一个方法

    public MemoryStream returnPDF()
    {
        using (MemoryStream stream = new MemoryStream())
        {
            pdfRenderer.PdfDocument.Save(stream, false);
            return stream;
        }

    }

我的控制器如下所示

     [AcceptVerbs(HttpVerbs.Get | HttpVerbs.Post)]
    public ActionResult Contingency_Report(List<int> ids)
    {
        pdfExport pdf = new pdfExport(ids);

        MemoryStream stream = new MemoryStream();

        stream = pdf.returnPDF();
        return File(stream.ToArray(), "application/pdf", "contingency.pdf");

    }

正如我在Chrome中看到的那样（按下F12键），响应返回pdf（“响应”选项卡），但该文件无法下载。在“响应”选项卡中看到结果之前没有任何反应。如何让它可供下载？我希望浏览器询问保存文件的位置。

Answer 1

我解决了我的问题。如果有人需要帮助，那就是我做的事情

查看：

    $(function () {
    $("#btnCont").click(function () {
        var idsToSend = [];

        var grid = $("#grid_Edit").data("kendoGrid");
        var ds = grid.dataSource.view();

        for (var i = 0; i < ds.length; i++) {
            var row = grid.table.find("tr[data-uid='" + ds[i].uid + "']");
            var checkbox = $(row).find(".checkbox");

            if (checkbox.is(":checked")) {
                idsToSend.push(ds[i].ID);
            }
        }

        //      alert(idsToSend);

        //  $.post("/Contigency/Contingency_Report", { ids: idsToSend});

        var url = "";
        url = server;

        var getUrl = '@Url.Action("Download_Report", "Contigency")';

        $.ajax({
            url: url + "/Contigency/Contingency_Report",
            type: 'post',
            contentType: 'application/json',
            data: JSON.stringify({
                ids: idsToSend 
            }),
            success: function (d) {
                if (d.success) {
                          window.location = getUrl + "?fName="+ d.fName;
                              }
             },
             error: function () {

             }

        })
    })
}

 );

发布并获取方法

            public ActionResult Contingency_Report(List<int> ids)
    {
        MemoryStream workStream = new MemoryStream();

        pdfExport pdf = new pdfExport(ids);

        workStream = pdf.returnPDF();

        workStream.Position = 0;

        var fName = string.Format("Contingency-{0}", DateTime.Now.ToString("s"));
        Session[fName] = workStream;

        return Json(new { success = true, fName }, JsonRequestBehavior.AllowGet);
    }

    public ActionResult Download_Report(string fName)
    {
        var cd = new System.Net.Mime.ContentDisposition
        {
            FileName = fName+".pdf",
            Inline = false,
        };

        var stream = Session[fName] as MemoryStream;
        if (stream == null)
            return new EmptyResult();

        Session[fName] = null;

        Response.AppendHeader("Content-Disposition", cd.ToString());

        return File(stream, System.Net.Mime.MediaTypeNames.Application.Pdf);
    }

那就是它！

MVC＆amp; PDFSharp - 生成的pdf不会下载

1 个答案: