Hi Thorsten,
adding a behavior to the tag is nothing you would want to do in your
behavior, because
it's too late to have any effect on the current rendering (see
Component#renderComponentTag()).
Behaviors on markup tags are meant to be used to alter the markup
independent of any component, see RelativePathPrefixHandler and
WicketMessageTagHandler for inspiration.
> what should I do to let my AjaxBehavior change the "class" attribute?
The following is just fine:
tag.append("class", "murks", " ");
Regards
Sven
On 27.01.2015 19:25, Thorsten Schöning wrote:
Hi all,
I have a class extending AbstractAjaxBehavior and overriding
onComponentTag(ComponentTag tag), because I need a custom css class
added. I thought this would be an easy task by simply adding an
AttributeAppender like the following:
tag.addBehavior(AttributeModifier.append("class", "murks2"));
But that doesn't work, the "class" attribute retains it's initial
value. If I add low level like the following the attribute's value
changes successfully:
tag.append("class", "murks", " ");
I googled a bit and found one thread about AjaxLink and the same
problem, but no description on why using AttributeModifier doesn't
work and I don't even use AjaxLink at all.
Am I doing something wrong or is this intended behavior? In the latter
case, what should I do to let my AjaxBehavior change the "class"
attribute?
Thanks for your help!
Mit freundlichen Grüßen,
Thorsten Schöning
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