Re: Obscure bug involving AjaxFlexibleFileUpload
Re: Obscure bug involving AjaxFlexibleFileUpload
- Subject: Re: Obscure bug involving AjaxFlexibleFileUpload
- From: Chuck Hill <email@hidden>
- Date: Wed, 25 Jun 2014 01:09:30 +0000
- Thread-topic: Obscure bug involving AjaxFlexibleFileUpload
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On 2014-06-24, 5:59 PM, "Paul Hoadley" wrote:
On 23/06/2014, at 3:43 PM, Paul Hoadley < email@hidden> wrote: I've been using AjaxFlexibleFileUpload in a project for a few months now, but I've been getting reports of occasional failures. The symptoms are very specific:
1. User clicks "Select File..." and selects a file.
2. User clicks "Upload", and nothing happens.
That is, the expected behaviour at 2 is, obviously, a progress meter appears, and the file is uploaded. What actually happens is the the "Upload" link disappears, but nothing else happens. The "clear" icon remains, and is the only work-around for the issue:
the user can clear the selected file and try again, at which point the upload succeeds.
There are some features that make me think this is going to be terrible to track down.
I never did get to the bottom of the issue, but there's a workaround which is mostly satisfactory. Given that the user can only select a single file, the "Upload" button is essentially superfluous. So it turns out that setting $autoSubmit="$true" side-steps
the issue by removing step 2 from the list above. I've convinced myself that this is a marginally better user experience anyway, so I don't have to dive into the bowels of the page and its myriad resources to find the actual root cause.
I’ve solved several Ajax problems in a similar manner. It really does make you wish for a more stable UI platform.
Chuck
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