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| which tag i have to use |
Expert:puppy
Hi All,
I have one Question Regadding Jsf.
when i clicked on one dropdown list box.when i select one item it should disply another drop down box dynamically depending on our requirement.
for that what tag i have to use.please help me.
Thanks,
Puppy. |
| Answers |
use Ajax
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Hi friend,
Solve the Problem some steps to be remember :
1.Create two select menu.
For example :
State Menu and select the corresponding City Menu.
<h:panelGroup>
<h:selectOneMenu value="#{Register.select1}" valueChangeListener="#{Register.processValueChange}" immediate="true" onchange="this.form.submit()" >
<c:selectItems value="#{Register.stateList}"/>
</h:selectOneMenu>
</h:panelGroup>
<h:outputText value="City: " />
<h:panelGroup>
<h:selectOneMenu value="#{Register.select2}">
<c:selectItems value="#{Register.cityList}" />
</h:selectOneMenu>
</h:panelGroup>
2.Use "valueChangeListener" attributes of "selectOneMenu".
3.After Select state Event can be generate and "processValueChange" method call and set list of city.
public void processValueChange(ValueChangeEvent event){
try{
SelectItem option5 = new SelectItem("1", "abc");
cityList.add(option5);
}
}
catch(Exception e){
try{
con.close();
}
catch(Exception ex){}
}
}
For more information on JSF valueChangeListener visit to :
http://www.roseindia.net/jsf/valueChangeListener.shtml
http://www.javajazzup.com/issue8/page54.shtml
Thanks
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