Hi,
I have a situation that I want to change possible choices in a palette
according to a DropDown.
I added to the DropDown the Ajax Updating
add(new AjaxFormComponentUpdatingBehavior("onchange") {...}
I have this palette:
final CustomPalette palette = new CustomPalette("palette", new
PropertyModel(rolesCoverage, "comparedConfigurations"),
allConfigurationsModel, choiceRenderer, 10, true);
and:
final IModel allConfigurationsModel = new AbstractReadOnlyModel() {
private static final long serialVersionUID = 1L;
@Override
public Object getObject() {
final List<Configuration> allConfigs =
sageDal.getConfigurations();
allConfigs.remove(rolesCoverage.getMainConfiguration());
return allConfigs;
}
};
The page uses CompoundPropertModel: super(id, new
CompoundPropertyModel(rolesCoverage)); in the constructor.
The problem that I encountered is that if I added to the target of the
DropDown the palette, it kept remembering my selected values.
In order to change that I hacked a bit with our CustomPalette:
@Override
protected Component newChoicesComponent() {
final Component result = super.newChoicesComponent();
externalizedChoiceComponent = result;
externalizedChoiceComponent.setOutputMarkupId(true);
return result;
}
public Component getExternalizedChoiceComponent() {
return this.externalizedChoiceComponent;
}
And in the DropDown, instead of adding the palette, I used
target.addComponent(customPalette.getExternalizedChoiceComponent());
It works.
My question is if this is the correct way? Is there a better way doing that?
Eyal Golan
[email protected]
Visit: http://jvdrums.sourceforge.net/
LinkedIn: http://www.linkedin.com/in/egolan74
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