Apache Struts 2 Documentation > Home > Guides > Tag Developers Guide > Struts Tags > Tag Reference > UI Tag Reference > head |
Please make sure you have read the Tag Syntax document and understand how tag attribute syntax works. |
Renders parts of the HEAD section for an HTML file. This is useful as some themes require certain CSS and JavaScript includes.
If, for example, your page has ajax components integrated, without having the default theme set to ajax, you might want to use the head tag with theme="ajax" so that the typical ajax header setup will be included in the page.
The tag also includes the option to set a custom datepicker theme if needed. See calendarcss parameter for description for details.
If you use the ajax theme you can turn a debug flag on by setting the debug parameter to true.
Name |
Required |
Default |
Evaluated |
Type |
Description |
---|---|---|---|---|---|
accesskey | false | true | String | Set the html accesskey attribute on rendered html element | |
calendarcss | false | calendar-blue.css | true | String | The jscalendar css theme to use |
cssClass | false | true | String | The css class to use for element | |
cssStyle | false | true | String | The css style definitions for element ro use | |
debug | false | true | String | Set to true to enable debugging mode for AJAX themes | |
disabled | false | true | String | Set the html disabled attribute on rendered html element | |
id | false | true | String | id for referencing element. For UI and form tags it will be used as HTML id attribute | |
key | false | true | String | Set the key (name, value, label) for this particular component | |
label | false | true | String | Label expression used for rendering a element specific label | |
labelposition | false | true | String | Define label position of form element (top/left) | |
name | false | true | String | The name to set for element | |
onblur | false | true | String | Set the html onblur attribute on rendered html element | |
onchange | false | true | String | Set the html onchange attribute on rendered html element | |
onclick | false | true | String | Set the html onclick attribute on rendered html element | |
ondblclick | false | true | String | Set the html ondblclick attribute on rendered html element | |
onfocus | false | true | String | Set the html onfocus attribute on rendered html element | |
onkeydown | false | true | String | Set the html onkeydown attribute on rendered html element | |
onkeypress | false | true | String | Set the html onkeypress attribute on rendered html element | |
onkeyup | false | true | String | Set the html onkeyup attribute on rendered html element | |
onmousedown | false | true | String | Set the html onmousedown attribute on rendered html element | |
onmousemove | false | true | String | Set the html onmousemove attribute on rendered html element | |
onmouseout | false | true | String | Set the html onmouseout attribute on rendered html element | |
onmouseover | false | true | String | Set the html onmouseover attribute on rendered html element | |
onmouseup | false | true | String | Set the html onmouseup attribute on rendered html element | |
onselect | false | true | String | Set the html onselect attribute on rendered html element | |
required | false | false | true | Boolean | If set to true, the rendered element will indicate that input is required |
requiredposition | false | true | String | Define required position of required form element (left|right) | |
tabindex | false | true | String | Set the html tabindex attribute on rendered html element | |
template | false | true | String | The template (other than default) to use for rendering the element | |
templateDir | false | true | String | The template directory. | |
theme | false | true | String | The theme (other than default) to use for rendering the element | |
title | false | true | String | Set the html title attribute on rendered html element | |
tooltip | false | true | String | Set the tooltip of this particular component | |
tooltipConfig | false | true | String | Set the tooltip configuration | |
value | false | true | String | Preset the value of input element. |
<head> <title>My page</title> <s:head/> </head>
<head> <title>My page</title> <s:head theme="ajax" calendarcss="calendar-green"/> </head>