add( new AttributeModifier("src", true, new AbstractReadOnlyModel() { Object getObject(Component c) { return urlFor(my_image_resource)+"&rand="+Math.random(); } );
-Igor
On 4/3/06, Ray Cromwell <[EMAIL PROTECTED]> wrote:
I'm not sure adding HTTP headers will do the trick. If Wicket Ajax is
modifying the URL of the IMG SRC, but the URL is exactly the same as
before the AJAX request, will the browser even bother to reload it?
Igor Vaynberg wrote:
> well, this image is a resource that you are generating right? so, you
> are streaming it and you are free to add any anti caching headers to it.
>
> -Igor
>
>
> On 4/3/06, * Ray Cromwell* <[EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]>> wrote:
>
> Ray Cromwell wrote:
> > Igor Vaynberg wrote:
> >
> >> i think this is indeed an image caching issue and ajax cannot
> >> forcefully reload the image because all ajax does is update the <img
> >> src="" tag. give the random number idea a try, easy enough
> and i
> >> used it myself a couple of times to great results.
> >>
> >
> > I'm new to wicket, so what's the best way to add a random string
> to the
> > URL generated by Image when it is rendered?
>
> Igor, any suggestions? BTW, should this be something that Wicket does
> automagically? Either by having the _javascript_ force a reload if image
> resources or others are modified, or by adding anti-caching strings to
> the automatically generated SRC urls?
>
> -Ray
>
>
>
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