Hi Geoff,
Tapestry doesn't hook up zones etc. until the DOM is loaded, so the link
isn't an AJAX link at the time you click it.
You can check Request#isXhr in your event handler to see if it's an AJAX
request - if it's not you can't return a Block, so you'll have to figure
out another way to do what needs to be done.
-Filip
On 2008-09-06 14:48, Geoff Callender wrote:
Is this a known problem? Is there a known solution?
I have a page with 2 ActionLinks - the first link updates the whole
page; the second link specifies a zone.
If you click on the two links in quick succession then an exception is
thrown. Alternatively, just Reload the page and click on the second
link before the page has finished reloading and you'll get the same
exception.
Here's the page, with source:
http://202.177.217.122:8080/jumpstart/examples/javascript/ajax
Here's the exception:
A component event handler method returned the value
[EMAIL PROTECTED] Return type
org.apache.tapestry5.internal.structure.BlockImpl can not be handled.
Configured return types are java.lang.Class, java.lang.String,
java.net.URL, org.apache.tapestry5.Link,
org.apache.tapestry5.StreamResponse,
org.apache.tapestry5.runtime.Component.
Geoff
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