请问导出PDF方法，如何能生成pdf文件流

收藏

请问导出PDF方法，如何能生成pdf文件流

            var outputDirectory = new DirectoryInfo(outputDirectorypath);
            //导出至某个盘符
            outputDirectory.Create();

            // Provide settings for your rendering output.
            // Provide settings for your rendering output.
            GrapeCity.ActiveReports.Export.Pdf.Page.Settings pdfSetting = new GrapeCity.ActiveReports.Export.Pdf.Page.Settings();
            //pdfSetting.Title = $"{file_name}_{Guid.NewGuid()}";
            // Set the rendering extension and render the report.
            GrapeCity.ActiveReports.Export.Pdf.Page.PdfRenderingExtension pdfRenderingExtension = new GrapeCity.ActiveReports.Export.Pdf.Page.PdfRenderingExtension();
            GrapeCity.ActiveReports.Rendering.IO.FileStreamProvider outputProvider = new GrapeCity.ActiveReports.Rendering.IO.FileStreamProvider(outputDirectory, Path.GetFileNameWithoutExtension($"{bill_id}_{StringExtension.GetRandomString(4)}"));

            // Overwrite output file if it already exists
            outputProvider.OverwriteOutputFile = true;
            report.Document.Render(pdfRenderingExtension, outputProvider, pdfSetting);