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Basit
Basit

Reputation: 8606

h:selectManyListBox valueChangeListener is not calling

I am using Netbeans 6.9.1. I am using code in which i am simply using selectManyListBox and i want that when user selects all the values then my valueChangeListener is call. Here what i am doing

<h:selectManyListbox id="countryListBox" size="5" value="#{news.saarcCountries}"
                     onselect="form.submit();" valueChangeListener="#{news.changeAppearOnCountryPage}">
    <f:selectItems value="#{news.saarcCountriesMap}"/>
    <f:ajax render="countryPageExpiryCalender" />

</h:selectManyListbox>

<p:calendar id="countryPageExpiryCalender" value="#{news.countryPageExpiryDate}"
            navigator="true" style="z-index: 1;" locale="en" mode="popup"
            pattern="dd/MM/yyyy" showOn="button" readOnlyInputText="true"
            disabled="#{!news.appearOnCountryPage}" />

I also tried this, instead of onselect i used onchnage like

onchange="submit()"

Here is my valueChangeListener

@ManagedBean(name = "news")
@ViewScoped
public class News {

    private Map<String, String> saarcCountriesMap = new LinkedHashMap<String, String>();
    private Set<String> saarcCountries = new TreeSet<String>();
    ...

    public void changeAppearOnCountryPage(ValueChangeEvent vcEvent){
        Iterator iter = saarcCountries.iterator();
        while(iter.hasNext()) {

            String name = (String)iter.next();
            System.out.println(name);
        }
    } //end of changeAppearOnCountryPage


} //end of class News

I want that when user select all the values from the selectmanyListBox, then my valueChangeListener is call, and i check if i have the values in saarcCountries variable, then i set appearOncountryPage = true, so my calender is render. But my valueChangeListener is not calling. What i am doing wrong?

If i choose onselect, then i want to ask one thing this event will trigger whenever i select the value, of after i have selected all the values. I want that when user select all the values then my ValueChangeListener is call and the values that user selected will be in my saarcCountries variable. So i can check the values that user selected.

I think onchange() is not appropriate in my case. Please help. I am stuck because of it:(

Thanks

Upvotes: 0

Views: 3240

Answers (1)

Daniel
Daniel

Reputation: 37061

try it like this:

<h:selectManyListbox id="countryListBox" size="5" value="#{news.saarcCountries}">
    <f:selectItems value="#{news.saarcCountriesMap}"/>
    <f:ajax event="change" listener="#{news.changeAppearOnCountryPage}" render="countryPageExpiryCalender"/>
</h:selectManyListbox>

You don't need the form.submit(); since you can use the ajax...

Upvotes: 2

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