How to access client-side component attributes from the composer

asked 2011-05-04 11:51:03 +0800

cyiannoulis gravatar image cyiannoulis
1191 10

Hi to all,

Consider the following simple zul:

<?page title="Welcome" contentType="text/html;charset=UTF-8"?>
<?init class="org.zkoss.zkplus.databind.AnnotateDataBinderInit" root="./winWelcome" ?>

<script type="text/javascript">
	function checkAttribute(element) {
		var component = document.getElementById(element.uuid);
		var attribute = component.getAttribute("MyAttribute");

<zk xmlns:w="http://www.zkoss.org/2005/zk/client" xmlns:d="http://www.zkoss.org/2005/zk/client/attribute">

    <window id="winWelcome" title="Welcome" border="normal" apply="controllers.WelcomeForm" width="450px" height="100%">

          <textbox id="txtLogin" w:onFocus="checkAttribute(this)" />



And the composer:

package controllers;

public class WelcomeForm extends GenericForwardComposer {

	private static final long serialVersionUID = 1L;
	 * The data binder 
	private AnnotateDataBinder binder;
	 * Autowired components
	private Window winWelcome;
	private Textbox txtLogin;
	public void doAfterCompose(Component window) {
		try {
		catch (Exception e) {
		if (self != null)
			self.setAttribute("controller", this);
		txtLogin.setAttribute("d:MyAttribute", "my-attribute");
	public void onCreate$winWelcome(Event event) {
		binder = (AnnotateDataBinder) event.getTarget().getAttribute("binder", true);

As you see what i am trying to do is to set the client-side attribute MyAttribute from the composer to the component txtLogin.
Unfortunately it doesn't work. Is there any other way to do this?

Thank you all

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answered 2011-05-04 18:44:26 +0800

caclark gravatar image caclark
1753 2 5

txtLogin.setAttribute("d:MyAttribute", "my-attribute");

What's the "d:" for on the attribute name?

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answered 2011-05-05 02:18:47 +0800

cyiannoulis gravatar image cyiannoulis
1191 10

Cary, as you see i have declared the following namespace:


I supposed that i had to set this attribute using the d prefix to declare it as a client-side attribute. Wrong. I found that it was quite easy to do this by using the following method:

txtLogin.setWidgetAttribute("MyAttribute", "my-attribute");

Thank you

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Asked: 2011-05-04 11:51:03 +0800

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Last updated: May 05 '11

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