asp.net-mvc - ASP.NET MVC 4 重定向回索引 View

Question

bat :我是使用 asp.net mvc 4 的新手。

我有一个创建excel文件然后将其转换为PDF的操作。

从 View

@Html.ActionLink("Generate Invoice", "genInvoice", new { id = item.invoiceID }) |

行动:

public ActionResult genInvoice(int id = 0)
    {
        var invoiceItems = from k in db.InvoiceItems
                           where k.invoiceID == id
                           select k;

        string invoiceClient = (from kk in db.Invoices
                                where kk.invoiceID == id
                                select kk.clientName).Single();


        invoiceClient = invoiceClient + "_" + DateTime.Now.ToString("ddd dd MMM yyyy hhTmm");
        string websitePath = Request.PhysicalApplicationPath;
        string pathName = websitePath + "\\" + invoiceClient ;
        generateInvoice(invoiceItems, pathName + ".xlsx", id);
        convertToPDF(pathName, invoiceClient);

//Response.AppendHeader("Content-Disposition", "attachment");

          var viewModel = new InvoiceItemAdd();
          viewModel.Invoices = db.Invoices
              .Include(i => i.InvoiceItems)
              .OrderBy(i => i.invoiceID);
        return View("Index", viewModel);
        //return RedirectToAction("Index",viewModel);


    }

现在我想最终下载 PDF 文件，然后返回到索引 View 。
它转到索引 View 打印 html 等，但随后窗口保持为白色屏幕，网址为:/Invoice/genInvoice/1

知道我该怎么做吗？ (PDF 生成后返回索引 View ，也下载它)

Answer 1

对不起，我解决了白屏问题。在尝试进行 PDF 下载时

//Response.AppendHeader("Content-Disposition", "inline; filename="+invoiceClient+".pdf");
            //Return File(output, "application/pdf");
            //Response.Flush();

            //Response.End();

Response.End() 没有被注释掉，我猜这停止了。

现在的问题是如何在单独的选项卡中打开 PDF 并返回当前的索引
用上面的代码。

编辑:
决定文件只能下载。

public FileResult genInvoice(int id = 0)
{
//More code
Response.AppendHeader("Content-Disposition", "attachment; filename="+pathName+".pdf");
return File(websitePath + "\\" + invoiceClient + ".pdf", "application/pdf");
}