programmatic HTmlCommandLink action with parameters not working

[frank b]

I have a very basic form with a panelGrid to which I add HtmlComandLinks from my backing bean. I'm also adding a parameter, "guess", to each link.

The links are created. The problem is the links don't work. Looking at the generated html, i see this in the onclick event of the link:

document.forms['guessInputForm']['guess'].value='0'

Because there isn't a form field called "guess", a JavaScript error occurs.

Shouldn't JSF create the hidden field?


index.jsp:

<f:view>
<h:form id="guessInputForm">
 
<h:panelGrid id="userNumbersPanel" binding="#{NumberGuessBean.userNumbersPanel}"/>
 
</h:form>
</f:view>

getUserNumbersPanel() in NumberGuessBean.java:

public HtmlPanelGrid getUserNumbersPanel(){
FacesContext facesContext = FacesContext.getCurrentInstance();
Application application = facesContext.getApplication();
 
if(userNumbersPanel == null){
userNumbersPanel = new HtmlPanelGrid();
}
 
userNumbersPanel.setColumns(gameRandomNumber.getMaxNumber() + 1);
 

List<UIComponent> children = userNumbersPanel.getChildren();
HtmlCommandLink link;
UIParameter param
 
for (int i = 0; i <= gameRandomNumber.getMaxNumber(); i++) {
link = (HtmlCommandLink)application.createComponent(HtmlCommandLink.COMPONENT_TYPE);
link.setActionExpression(application.getExpressionFactory()
.createMethodExpression(facesContext.getELContext(),
"#{NumberGuessBean.checkGuess}",
String.class,
new Class<?>[0])
);
link.setValue(String.valueOf(i));
 
param = new UIParameter();
param.setName("guess");
param.setValue(String.valueOf(i));
link.getChildren().add(param);
 
children.add(link);
}
 

return userNumbersPanel;
}