JSF HTML Tag Reference

Contents

10. JSF HTML Tag Reference

h:panelGroup

The panelGroup tag is a container component that renders its child components. It is intended to be used in situations where it is desirable to include several components but when only one child component is allowed, such as within a panelGrid column or a facet component.

The example below demonstrates the use of a panelGroup component to nest two components inside a single panelGrid column. Without the panelGroup component, the two child components of the panelGrid would have been rendered in separate rows.

Example

<h:form id="form">
  <h:panelGrid id="grid" columns="1">
    <h:panelGroup>
      <h:inputText id="username" value="#{userBean.user.username}" required="#{true}" />
      <h:message for="username" />
    </h:panelGroup>
  </h:panelGrid>
</h:form>

HTML Output

<form id="form" name="form" method="post" ... >
<table id="grid">
  <tbody>
    <tr>
      <td><input id="username" name="username" type="text" value=""/> "username": Value is required.</td>
    </tr>
  </tbody>
</table>
</form>

Tag Attributes

binding	Expression

The value-binding expression linking this component tag to a backing bean property.

id	Text

The unique identifier value for this component. The value must be unique within the closest naming container.

rendered	Boolean

A value-binding expression that evaluates to a Boolean condition indicating if this component should be rendered.

style	CSS Style

The style attribute sets the CSS style definition to be applied to this component when it is rendered.

styleClass	CSS Class

The styleClass attribute sets the CSS class to apply to this component when it is rendered.