Apache Struts 2 Documentation > Home > Guides > Tag Developers Guide > Struts Tags > Tag Reference > UI Tag Reference > radio
Added by Jay Bose, last edited by Tom Schneider on Feb 18, 2007  (view change)
Please make sure you have read the Tag Syntax document and understand how tag attribute syntax works.
Important

Note that the listkey and listvalue attribute will default to "key" and "value" respectively only when the list attribute is evaluated to a Map or its decendant. Everything else will result in listkey and listvalue to be null and not used.

Description

Render a radio button input field.

Parameters

Dynamic Attributes Allowed:

false
 

Name

Required

Default

Evaluated

Type

Description

accesskey false false String Set the html accesskey attribute on rendered html element
cssClass false false String The css class to use for element
cssErrorClass false false String The css error class to use for element
cssErrorStyle false false String The css error style definitions for element to use
cssStyle false false String The css style definitions for element to use
disabled false false String Set the html disabled attribute on rendered html element
id false false String HTML id attribute
javascriptTooltip false false false Boolean Use JavaScript to generate tooltips
key false false String Set the key (name, value, label) for this particular component
label false false String Label expression used for rendering an element specific label
labelSeparator false : false String String that will be appended to the label
labelposition false false String Define label position of form element (top/left)
list true false String Iterable source to populate from. If the list is a Map (key, value), the Map key will become the option 'value' parameter and the Map value will become the option body.
listKey false false String Property of list objects to get field value from
listValue false false String Property of list objects to get field content from
name false false String The name to set for element
onblur false false String Set the html onblur attribute on rendered html element
onchange false false String Set the html onchange attribute on rendered html element
onclick false false String Set the html onclick attribute on rendered html element
ondblclick false false String Set the html ondblclick attribute on rendered html element
onfocus false false String Set the html onfocus attribute on rendered html element
onkeydown false false String Set the html onkeydown attribute on rendered html element
onkeypress false false String Set the html onkeypress attribute on rendered html element
onkeyup false false String Set the html onkeyup attribute on rendered html element
onmousedown false false String Set the html onmousedown attribute on rendered html element
onmousemove false false String Set the html onmousemove attribute on rendered html element
onmouseout false false String Set the html onmouseout attribute on rendered html element
onmouseover false false String Set the html onmouseover attribute on rendered html element
onmouseup false false String Set the html onmouseup attribute on rendered html element
onselect false false String Set the html onselect attribute on rendered html element
required false false false Boolean If set to true, the rendered element will indicate that input is required
requiredposition false false String Define required position of required form element (left|right)
tabindex false false String Set the html tabindex attribute on rendered html element
template false false String The template (other than default) to use for rendering the element
templateDir false false String The template directory.
theme false false String The theme (other than default) to use for rendering the element
title false false String Set the html title attribute on rendered html element
tooltip false false String Set the tooltip of this particular component
tooltipConfig false false String Deprecated. Use individual tooltip configuration attributes instead.
tooltipCssClass false StrutsTTClassic false String CSS class applied to JavaScrip tooltips
tooltipDelay false Classic false String Delay in milliseconds, before showing JavaScript tooltips
tooltipIconPath false false String Icon path used for image that will have the tooltip
value false false String Preset the value of input element.

Examples

In this example, a radio control is displayed with a list of genders. The gender list is built from attribute id=genders. The framework calls getGenders() which will return a Map. For examples using listKey and listValue attributes, see the section select tag. The default selected one will be determined (in this case) by the getMale() method in the action class which should retun a value similar to the key of the getGenters() map if that particular gender is to be selected.

<s:action name="GenderMap" var="genders"/>
<s:radio label="Gender" name="male" list="#genders.genders"/>