如何在.Net中使用c#在不打開的情況下下載jsreport

Question

我正在使用 JS 報告查看。 此代碼呈現文件並保存在根目錄中。 但我想要文件是直接下載而不是打開查看。

  var header = await _jsReportMVCService.RenderViewToStringAsync(HttpContext, RouteData, "Header", new { });
                var footer = await _jsReportMVCService.RenderViewToStringAsync(HttpContext, RouteData, "Footer", new { });
                HttpContext.JsReportFeature()
                     .Recipe(Recipe.ChromePdf)
                     .Configure((r) =>
                     {
                         //r.Options = new RenderOptions
                         //{
                         //    Timeout = 600000
                         //};
                         r.Template.Chrome = new Chrome
                         {
                             HeaderTemplate = header,
                             FooterTemplate = footer,
                             DisplayHeaderFooter = true,
                             MarginTop = "1cm",
                             MarginLeft = "2cm",
                             MarginBottom = "2cm",
                             MarginRight = "1.5cm",
                             Format = "A3"
                         };
                     });
                HttpContext.JsReportFeature().OnAfterRender((renderer) =>
                {
                    using (var file = System.IO.File.Open("EmployeesList.pdf", FileMode.Create))
                    {
                        renderer.Content.CopyTo(file);

                    }
                    renderer.Content.Seek(0, SeekOrigin.Begin);
                });

Answer 1

你可以像這樣下載一個 JSReport

[MiddlewareFilter(typeof(JsReportPipeline))]
public IActionResult InvoiceDownload()
{
            HttpContext.JsReportFeature().Recipe(Recipe.PhantomPdf)
                .OnAfterRender((r) => HttpContext.Response.Headers["Content-Disposition"] = "attachment; filename=\"myReport.pdf\"");

            return View("Invoice", InvoiceModel.Example());
}

您可以從官方的 asp.net 核心示例中獲得幫助。

希望這可以幫助你