After a user clicks a button, I want a file to be downloaded. I've tried the following which seems to work, but not without throwing an exception (ThreadAbort) which is not acceptable.
System.Web.HttpResponse response = System.Web.HttpContext.Current.Response;
response.ClearContent();
response.Clear();
response.ContentType = "text/plain";
response.AddHeader("Content-Disposition", "attachment; filename=" + fileName + ";");
response.TransmitFile(Server.MapPath("FileDownload.csv"));
response.Flush();
response.End();
protected void DescargarArchivo(string strRuta, string strFile)
{
FileInfo ObjArchivo = new System.IO.FileInfo(strRuta);
Response.Clear();
Response.AddHeader("Content-Disposition", "attachment; filename=" + strFile);
Response.AddHeader("Content-Length", ObjArchivo.Length.ToString());
Response.ContentType = "application/pdf";
Response.WriteFile(ObjArchivo.FullName);
Response.End();
}
Further to Karl Anderson solution, you could put your parameters into session information and then clear them after response.TransmitFile(Server.MapPath( Session(currentSessionItemName)));
.
See MSDN page HttpSessionState.Add Method (String, Object) for more information on sessions.
Try this set of code to download a CSV file from the server.
byte[] Content= File.ReadAllBytes(FilePath); //missing ;
Response.ContentType = "text/csv";
Response.AddHeader("content-disposition", "attachment; filename=" + fileName + ".csv");
Response.BufferOutput = true;
Response.OutputStream.Write(Content, 0, Content.Length);
Response.End();
Making changes as below and redeploying on server content type as
Response.ContentType = "application/octet-stream";
This worked for me.
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();
Simple solution for downloading a file from the server:
protected void btnDownload_Click(object sender, EventArgs e)
{
string FileName = "Durgesh.jpg"; // It's a file name displayed on downloaded file on client side.
System.Web.HttpResponse response = System.Web.HttpContext.Current.Response;
response.ClearContent();
response.Clear();
response.ContentType = "image/jpeg";
response.AddHeader("Content-Disposition", "attachment; filename=" + FileName + ";");
response.TransmitFile(Server.MapPath("~/File/001.jpg"));
response.Flush();
response.End();
}
Source: Stackoverflow.com