Hello, thanks for the response, what do you mean exactly by delegate to the mounted resource? I'm thinking I can mount the images resource, and simply reference them using their URI (is this what you mean by delating the call to the mounted resource?), so even if users replace the panel, image loading won't be cancelled, since it will still be waiting for an existing resource (instead of the problem I'm having now, where the resource vanishes before being transfered to the user).

I believe this should avoid 3. in your response, what do you think?

On 04/06/15 02:26, Ernesto Reinaldo Barreiro wrote:
Hi,

I see two options....

1- Block the screen while images are being loaded so user has to wait.

or

1- Mount a resource serving images thumbnails.
2- Panel showing those thumbnails just delegates into mounted resource. So,
image generation will be faster and panel replacement will be more fluid
3- Also block UI while replacing panel: if your users are too fast you
might encounter the same problem again.


On Thu, Jun 4, 2015 at 9:16 AM, Edgar Merino <donvo...@gmail.com> wrote:

Hello:

     I'm having a problem with dynamic resources and ajax calls, I have a
panel that includes some image thumbnails, these thumbnails may take
between 5 and 30 seconds, if a user attemps to cancel loading of this
images and loading another panel (e.g. replacing the panel), an exception
will be thrown and cause a 500 response for each of the resources that
failed to load. The logged error message is as follows:

ERROR - DefaultExceptionMapper     - Unexpected error occurred
org.apache.wicket.WicketRuntimeException: Component
'mainContainer:mainPanel:wrappedContent:tabbedPanel:panel:materias' has
been removed from page.

     I understand the error, but I don't know what to do to avoid it, has
anyone got a similar problem and found a solution?


Thanks in advance.
Edgar Merino.

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