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Blank files not completing upload
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Ryan
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Ryan asked on 15 Apr 2011, 06:07 AM
Hello Telerik support. I'm not sure if this is a known issue, but I just ran into something weird and I wanted to ask about it. I have a set of test upload files that I made, Test1.txt, Test2.txt, etc, and when I try to upload it with the ASyncUpload control the file progress bar stays yellow and the upload never completes. The files have nothing inside of them, and are just new files typed as a .txt file. I've tested it on IE 8 and Firefox 4 and they both never complete the upload or display any errors. However, when I added some text inside of the test files the uploads completed correctly. Strangely enough, when I tested the files on the Telerik demo pages for AsyncUpload they did complete the upload. This shouldn't be a problem unless users try and upload blank files accidentally, but I would like some way to detect this condition and display an appropriate error message and kill the upload if it happens.

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Genady Sergeev
Telerik team
answered on 19 Apr 2011, 08:49 AM
Hello Ryan,

I confirm the problem. The good news are that we already fixed it for the latest service pack and now it is possible to upload 0 byte files. I suggest that you upgrade.

All the best,
Genady Sergeev
the Telerik team

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Jin
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answered on 21 Aug 2012, 08:54 AM
I try to upload an blank txt file with RadAsyUpload for 2012 Q2, but it still cannot be uploaded.
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Peter Filipov
Telerik team
answered on 21 Aug 2012, 02:07 PM
Hi Zin,

Last year we introduced a new upload module and I am afraid the same issue appears again. We are aware of it and the problem will be resolved as soon as we could.

All the best,
Peter Filipov
the Telerik team
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Jin
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answered on 22 Aug 2012, 07:23 AM
Is there a temporary solution to fix it?
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Peter Filipov
Telerik team
answered on 22 Aug 2012, 09:59 AM
Hello Zin,

Unfortunately it is not possible to create a workaround as a temporary solution. The issue is resolved and next week the fix will be available in our internal build.

Kind regards,
Peter Filipov
the Telerik team
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Jin
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answered on 15 Sep 2012, 02:23 PM
Hi,

I just try to update the dll with 2012 Q2 SP2, I found that I still cannot download blank file.
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Peter Filipov
Telerik team
answered on 17 Sep 2012, 07:58 AM
Hi Zin,

I just tested our online demos and it is possible to upload files with zero byte size. Could you try them at your side and let me know the result?

Kind regards,
Peter Filipov
the Telerik team
If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed now.
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Ryan
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Genady Sergeev
Telerik team
Jin
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Peter Filipov
Telerik team
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