Refreshing a label when exporting to Excel

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Hi,

I've got a couple of buttons which export some tables to Excel. I have a label control which I use to report any errors.

When I click a button and there's no records to export, I set my label's text accordingly. However, when I then click on the other button and there are records to export, the spreadsheet is generated but the label value doesn't change as no postback seems to occur even though I try to set the label's text to the number of records found.

There's nothing special about the Excel export functionality - it's just the usual configure an HttpResponse, add a suitable header, render a DataGrid control to an HTMLTextWriter and do a Response.Write() followed by a Response.End().

Can anyone help?

Thanks :)

Posted 24-Aug-10 6:54am

j4v1

Updated 24-Aug-10 8:03am

Deeksha Shenoy

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Uwe Keim · Answer 1 · 2010-08-24T10:03:00

What happens here is, that your Excel export sends a response to the client browser.

Due to the mime type, the browser knows that is is an attachment do download, rather than a website to display.

So it opens the new response and saves int to your local disk, but does not reload the current page.

To be honest, I am unsure whether/how to achieve this; I would try experimenting with some AJAX, Update Panels, and the like...

Cheers
Uwe