problem in Open document on iis

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I m opening the the word pdf txt file from the server from the grid view(Web application) it open fine in visual studio but when i run this code from the iis, it open first time in new window perfectly but another time when i open it that open in same window and shows some machine type code

C#

String path = Server.MapPath(strRequest);
            System.IO.FileInfo file = new System.IO.FileInfo(path);
            if (file.Exists)
            {
                Response.Clear();
                Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name);
                Response.AddHeader("Content-Length", file.Length.ToString());
                Response.ContentType = "application/octet-stream";
                Response.WriteFile(file.FullName);

                //Response.End();
                HttpContext.Current.ApplicationInstance.CompleteRequest();
            }
            else
            {
                lblError.Text = "This file does not exist.";
            }

Posted 19-Mar-12 20:16pm

nitinsomal@gmail.com

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Sushil Mate · Answer 1 · 2012-03-19T23:23:00

using System.Net;

string pdfPath = Server.MapPath("~/SomePDFFile.pdf");
WebClient client = new WebClient();
Byte[] buffer = client.DownloadData(pdfPath);
Response.ContentType = "application/pdf";
Response.AddHeader("content-length", buffer.Length.ToString());
Response.BinaryWrite(buffer);

or

Response.Redirect("~/somePDFFile.pdf");