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h2. Overview
_Since 4.0_

The _ace:radioButton_ component is a simple true/false selection used to toggle a value that is bound to the button. This component is available since release 3.3.0_P02. The buttonGroup component may be used to manage a group of radioButton components.

{tip}See the ICEfaces Showcase [Live Demo|http://icefaces-showcase.icesoft.org/showcase.jsf?grp=aceMenu&exp=radioButton] of this component, complete with source code.{tip}


h2. Getting Started
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{code:xml|borderStyle=dashed}
<html ... xmlns:ace="http://www.icefaces.org/icefaces/components">
<h:body >
<h:form>
<ace:radioButton
value="{button.checked}"
label="radioButton"/>
</h:form>
</h:body>
</html>
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h2. Attributes

{tip:title=TagLib Documentation}This section covers attributes involved in the typical use-cases for this component. For reference, the complete taglib documentation for this component is available [here|http://www.icefaces.org/docs/v4_latest/ace/tld/ace/radioButton.html].{tip}
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*label* The label of the button-what the user sees that relates to that particular button. For example, "Remember Me"
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*labelPosition* Position of label relative to the radio button. Supported values are "left/right/top/bottom/none". Default is "none".
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*group* ID of button group component if this button is outside of the button group but wants to logically belong to the group.
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*style* a pass through to the root element of the component.
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*styleClass* a pass through to the root element of the component.
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*tabindex* a pass through to the root element of the component, default=0.
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*disabled* a pass through to the root element of the component.
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The following attributes are supported as pass-thru attributes: *accesskey*, *alt*, *dir*, *label*, *lang*, *style*, *tabindex*, *title*, *type*, *onchange*, *onselect*, *onclick*, *ondblclick*, *onkeydown*, *onkeypress*, *onkeyup*, *onmousedown*, *onmousemove*, *onmouseout*, *onmouseover*, *onmouseup*, *onblur*, *onfocus*
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h2. Event Listeners

As a descendant of UIInput, this component supports a value change listener.

| valueChangeListener | Method that will be notified when a new value has been set for this component |

h2. Client Behavior Events

| action | Fired when the button is clicked or pressed by any other means (default event). |

{tip}Prior to 4.0 this event was named "activate". The "activate" event name is now deprecated but treated as an alias for "action" for backwards compatibility with existing applications.{tip}

h2. JavaScript API

None.

h2. Keyboard Support

Default browser keyboard support for {{<button>}} elements (i.e. tabbing in and out, pressing space to activate).

h2. CSS Classes

The following markup represents the basic HTML structure of the component and the CSS classes it uses.

{code:xml}
<!-- Root container -->
<div class="ice-ace-radiobutton [user defined classes]" style="[user defined styles]">
<span class="ice-ace-radiobutton-main">
<span>
<button class="ui-corner-all ice-ace-radiobutton-selected">
<!-- Icon -->
<span class="fa fa-dot-circle-o fa-lg"></span>
</button>
</span>
</span>
</div>
{code}

h2. Known Issues

None.

h2. Additional Resources

None.