Calling Generic Handler .ashx from asp.net code behind

Asked Jan 23 '15 at 18:01

Active Jan 23 '15 at 18:30

Viewed 3,015 times

I have a generic handler (.ashx) which is used to download an excel file. When I try to call it using the code below:

HttpWebRequest request = WebRequest.Create("ExcelDownload.ashx?id=123") as HttpWebRequest;
HttpWebResponse response = request.GetResponse() as HttpWebResponse;

the file is not downloaded.But,I am able to debug the handler code when the request is made.

But when the handler is used in the anchor tags,I am able to download the file.

<a href="ExcelDownload.ashx?id=123">Excel Download</a>

Any idea why the first option is not working?

Additional Comments: In the handler,I am using the below code which works fine with anchor tag. I am not doing any thing with the response object returned by the request.

context.Response.Clear();
context.Response.ClearContent();
context.Response.ClearHeaders();
context.Response.Buffer = true;
byte[] buffer = memoryStream.ToArray();
context.Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
context.Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}", faWorkbookFileName));
context.Response.BinaryWrite(buffer);
context.Response.End();

edited Jan 23 '15 at 18:30

asked Jan 23 '15 at 18:01

jigsmshah

Did you try doing an absolute URL in the code and see if that works? – DLeh Jan 23 '15 at 18:03
yes,I did but same result. – jigsmshah Jan 23 '15 at 18:17
what are you doing with the `response` once you get it? – DLeh Jan 23 '15 at 18:18
update your question with this info so it's remotely readable – DLeh Jan 23 '15 at 18:20
You need to refractor the code , move the code written in handler to a class, so that both handler and your new module can use that, and you don't have to do webrequest to handler. – Arindam Nayak Jan 23 '15 at 18:27
added the additional code as requested. – jigsmshah Jan 23 '15 at 18:27
I want to call the handler on postback. I want handler to write it to the reponse(download) – jigsmshah Jan 23 '15 at 18:42

Calling Generic Handler .ashx from asp.net code behind

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