Form component - add child on construction???

Hi out there,
what I need is a HtmlForm component that adds a hidden HtmlInput field on construction.
I added this to faces-config:
<component>
<component-type>javax.faces.HtmlForm</component-type>
<component-class>com.sdm.clucke.faces.component.TaggingHtmlForm</component-class>
</component>... and built this class:
package com.sdm.clucke.faces.component;
import javax.faces.component.html.HtmlForm;
import javax.faces.component.html.HtmlInputHidden;
public class TaggingHtmlForm extends HtmlForm {
     public TaggingHtmlForm() {
          super();
          String id = "__DID__";
          HtmlInputHidden hiddenField = new HtmlInputHidden();
          hiddenField.setId(id);
          hiddenField.setValue("DUMMY_TAG");
          this.getChildren().add(hiddenField);
}But when I watch the rendered HTML, then no hidden-field is there. Can anyone help me?
Thanks in advance!
Regards,
luckec

I found the reason but don't know the solution.
The reason is FormRenderer.getRendersChildren() returns false.
But anyway you should not create a child component in the
constructor. It prevents you to use the client state saving method
because the method calls the constructor and tries to restore children too.

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testxml.vi ‏12 KB

Form component - add child on construction???

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