Streaming file from ajaxified button

[Gene]

Is there a way to stream a file to the response object using an ajaxified button?

[Daniel]

Hello Gene,

Unfortunately this is not possible. Please examine the following help topic:
Download files with ajaxified control

Best regards,
Daniel
the Telerik team

[Neil N]

Is this still the case?  So the code below will not work if called from an Ajaxified button?

Using OutStream As New MemoryStream
    xls.Save(OutStream)
    OutStream.Position = 0
    Response.Clear()
    Response.AddHeader("Content-Disposition", "attachment; filename=Submissions_Detail.xls")
    Response.AddHeader("Content-Length", OutStream.Length.ToString())
    Response.ContentType = "application/excel" 'octet-stream";
    Response.BinaryWrite(OutStream.ToArray())
    Response.End()
End Using

[Daniel]

Hello Neil,

This is not a limitation in our control but rather a limitation of the ASP.NET AJAX. You can find a possible workaround here:
AJAX, file downloads, and IFRAMEs

Best regards,
Daniel
the Telerik team

[Adam]

For those looking for the original blog post mentioned above:

https://web.archive.org/web/20161010055550/http://encosia.com/ajax-file-downloads-and-iframes/

[Vessy]

Thank you, Adam!