RDLC server side render report

Question

User-1716951449 posted

I have problem streaming the server-side rendered report content

            var rptVw = new ReportViewer();

            var rptLocal = rptVw.LocalReport;
            rptLocal...
            rptLocal.Refresh();

            // http://www.c-sharpcorner.com/blogs/rdlc-report-export-on-server
            string mimeType = null;
            string encodingName = null;
            string fileNmExt = null;
            string[] streams = null;
            Warning[] warnings = null;
            var output = rptLocal.Render("Word", null, out mimeType, out encodingName, out fileNmExt, out streams, out warnings);

            Encoding encoding = (encodingName == null) ? Encoding.Default : Encoding.GetEncoding(encodingName);
            var outputStr = encoding.GetString(output);

            if (!fileNmExt.StartsWith(".")) fileNmExt = "." + fileNmExt;

            var resp = Response;
            resp.Clear();
            resp.Buffer = true;
            resp.AddHeader("content-disposition", string.Format("attachment;filename={0}{1}", this.FileNameField, fileNmExt));
            //resp.Charset = "";
            resp.ContentType = mimeType; // "application/vnd.ms-word";
            resp.Write(outputStr);
            resp.Flush();
            resp.End();

file downloaded, but garbage content is showing up at client side

i'm suspecting using wrong encoding, but i dunno what encoding to be use.