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Hi... (sorry about my poor english)
I am using ZK 5.0.9
I have a zul page but I am putting almost all the properties of each component in my GenericForwardComposer.
I have a Combobox with some Comboitems. I have a problem because the Combobox has to make an action when it receive the focus (with the ONFOCUS event), but I have seen it fire the event with every change of selection. It seem as if all the Comboitems (which has not events declared) has got the event from the parent. My question is... am I wrong? and if not, How can I prevent it?.
Thanks to all
Hi DaniG,
It will fire event if you listen it, for example,
<combobox onOpen="" onChange="" ...
You can prevent it by unlisten event.
Regards,
ben
Hi ben...
Thanks for your time. Sorry, I am not sure to understand you. Maybe I am doing something wrong.
My zul is quite simple:
<combobox id="T1_DOM_CODPROVINCIA" />
My GenericForwardComposer is more or less like:
comboProvincia = (Combobox) ventana.getFellow("T1_DOM_CODPROVINCIA");
comboProvincia.addEventListener(Events.ON_FOCUS, new SerializableEventListener() {
@Override
public void onEvent(Event event) throws Exception {
guardaValor();
}
});
comboProvincia.addEventListener(Events.ON_BLUR, new SerializableEventListener() {
@Override
public void onEvent(Event event) throws Exception {
compruebaComponente();
}
});
cargaComboProvincias(); //call to the method which loads the Combo
...
//Method to load the Combo
public void cargaComboProvincias()
{
List<TipoDatosCampoValor> listado;
try
{
listado = clienteM.getClientGestorModelo().getTablaDatosAuxiliares("PROVINCIAS");
for(TipoDatosCampoValor tipoDatosCampoValor : listado)
{
comboitemProvincia = new Comboitem();
comboitemProvincia.setLabel(tipoDatosCampoValor.getValor());
comboitemProvincia.setValue(tipoDatosCampoValor.getNombreCampo());
comboProvincia.appendChild(comboitemProvincia);
}
}
catch (MtrrException mtre) {
}
}
Then... I don't know why (WITHOUT TO EXIT OF THE COMBOBOX) every time I click on an option all Comboitems fire the event ON_FOCUS, so calls the method guardaValor() (which only when Combobox receive focus have to be fired), and I don't know how to prevent it.
Any idea?
Regards
Hi RichardL,
Yes, as you say I can put a flag or use a condition to know when the Combobox fire the event and when the Comboitems are (better than to remove my listener, because users need it lot of times). Thank you very much. Just I was asking myself... why I need it?. I mean, why the Comboitems fire a method with an event I didn`t write on its?. Are they taking it from parent?... why?...
It's the default action of Comboitem/Combobox,
Combobox will get focus and select the previous value so user can type a new value easily.
You can add the fragment below into your zul page to prevent it:
<script type="text/javascript">
zk.afterLoad("zul.inp", function () {
zul.inp.Comboitem.prototype.doClick_ = function (evt) {
if (!this._disabled) {
this._doMouseOut();
var cb = this.parent;
cb._select(this, {sendOnSelect:true, sendOnChange: true});
this._updateHoverImage();
cb.close({sendOnOpen:true});
// Fixed the onFocus event is triggered too late in IE.
cb._shallClose = true;
evt.stop();
}
}
zul.inp.Combobox.prototype._select = function (sel, opts) {
var inp = this.getInputNode(),
val = inp.value = sel ? sel.getLabel(): '';
this.valueSel_ = val;
}
});
</script>
You may want write it once in zk.xml for all page,
please refer to zk.xml/The device-config Element/The embed Element
Best Regards,
ben
Asked: 2012-01-23 10:22:31 +0800
Seen: 193 times
Last updated: Jan 25 '12