how to bind value attribute inside another component binding attribute

[s manchika]

I have HtmlPanelGroup which is created using binding attribute. This PanelGroup has many JSF elements like inputText, SelectOneMenu etc.. I am generating the Panelgroup successfully with all the elements.
My question is can I bind a dataObject to the value attribute for the elements under the PanelGroup. If so how will I do this.

For Ex: I am creating a text field inside the panelGroup as follows
HtmlPanelGroup panelGroup = new HtmlPanelGroup();

HtmlInputText inputText = new HtmlInputText();
inputText.setId("someIdVal");
inputText.setValue("someValue");

panelGroup.getChildren().add(inputText )

I am trying to do something like this
HtmlInputText inputText = new HtmlInputText();
inputText.setId("someIdVal");
inputText.setValue("#{someBeanObj.variableName}");

so that when user enters some value in inputTextField , the value gets stored under the mentioned variable.

my xhtml has the following line of code

<ice:panelGroup binding="#{someBean.panelGroup}" />

Any help is appreciated,
Thank you in advance

[Tim Holloway]

You can do this, but you have to bind an EL context to the dynamically-created HtmlInputText value property. It won't just take an EL expression, unfortunately.

I've done this, and it's a real pain. I use this method to help me out:

	/**
	 * Construct a bindable value expression
	 */
	public static ValueExpression resolveExpression(String expression) {
		FacesContext facesContext = FacesContext.getCurrentInstance();
		Application app = facesContext.getApplication();
		ExpressionFactory elFactory = app.getExpressionFactory();
		ELContext elContext = facesContext.getELContext();
		ValueExpression valueExp = elFactory.createValueExpression(elContext,
				expression, String.class);
		return valueExp;
	}

Usage is as follows:

			HtmlInputTextarea intext = (HtmlInputTextarea) application
					.createComponent(HtmlInputTextarea.COMPONENT_TYPE);
			intext.setRows(4);
			intext.setCols(60);
			intext.setId(colName);
			intext.setValueExpression("value",
					resolveExpression("#{userBean.data['" + colNum + "']}"));
			g0.getChildren().add(intext);

"g0" is the container control for my dynamic fields. In your case, it would be the PanelGroup.