how to control one SelectOneMenu from another

Thanks for replying. from activate i mean to populate it. like if user select USA than the city list should populate cities in it. and it should be done onchange. i have not worked on ajax yet so i do not have any idea about it. so if you can provide me any solution for jsf i be very glad.

or

if there is any tutorial available for ajax solution so let me know it.

Atiqea at 2007-7-8 8:44:43 >

Thanks for this solution. I'll try it.

Now i am facing an other problem. that is i am using <h: message> tag to show error message if user do not enter value for any field. i have three button on my form .

1. Save

2. Clear

3. Edit

I want that <H:message will only validate when i press save button. but it also validate when i press clear or edit. so do you have any idea about it.>

Atiqea at 2007-7-8 8:44:43 >

Check this:

<h:outputText value="Ward ID" />

<h:selectOneMenu id="wardId" value="#{WardController.id}" onchange="submit();" valueChangeListener="#{WardController.getBedValues}">

<f:selectItems value="#{WardController.wardList}" />

</h:selectOneMenu>

<h:outputText value="Bed ID" />

<h:selectOneMenu id="bedId" value="#{WardController.phone}" required="true">

<f:selectItems value="#{WardController.bedList}" />

</h:selectOneMenu>

my bean is like this :

public void getBedValues(){

try{

WardManagerDAO dao = new WardManagerDAO();

List allList = dao.showBeds(id);

bedList = new SelectItem[allList.size ()];

for(int i= 0;i<allList.size();i++){

WardDetail wards = (WardDetail)allList.get(i);

bedList=new SelectItem (wards.getBedId());

}

}

when i change the value of first list the following error occur:

javax.servlet.ServletException: getBedValues: com.obaidnoor.hms.controller.WardsController.getBedValues(javax.faces.event.ValueChangeEvent)

javax.faces.webapp.FacesServlet.service(FacesServlet.java:209)

With root cause :

javax.faces.el.MethodNotFoundException: getBedValues: com.obaidnoor.hms.controller.WardsController.getBedValues(javax.faces.event.ValueChangeEvent)

com.sun.faces.el.MethodBindingImpl.method(MethodBindingImpl.java:206)

com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:124)

javax.faces.component.UIInput.broadcast(UIInput.java:492)

javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:249)

javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:343)

com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:78)

com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)

com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90)

javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)

It say that method not found . but i have this method in my bean.>

Atiqea at 2007-7-8 8:44:43 >