Apache Struts 2 Documentation > Home > Guides > Tag Developers Guide > Struts Tags > Tag Reference > UI Tag Reference > select
Added by Jay Bose, last edited by Don Brown on Jan 06, 2007  (view change)
Please make sure you have read the Tag Syntax document and understand how tag attribute syntax works.

Description

Render an HTML input tag of type select.

Parameters

Dynamic Attributes Allowed:

true
 

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
emptyOption false false false Boolean Whether or not to add an empty (--) option after the header option
headerKey false false String Key for first item in list. Must not be empty! '-1' and '' is correct, '' is bad.
headerValue false false String Value expression for first item in list
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
multiple false false false Boolean Creates a multiple select. The tag will pre-select multiple values if the values are passed as an Array or a Collection(of appropriate types) via the value attribute. If one of the keys equals one of the values in the Collection or Array it wil be selected
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)
size false false Integer Size of the element box (# of elements to show)
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

Note: For any of the tags that use lists (select probably being the most ubiquitous), which uses the OGNL list
notation (see the "months" example above), it should be noted that the map key created (in the months example,
the '01', '02', etc.) is typed. '1' is a char, '01' is a String, "1" is a String. This is important since if
the value returned by your "value" attribute is NOT the same type as the key in the "list" attribute, they
WILL NOT MATCH, even though their String values may be equivalent. If they don't match, nothing in your list
will be auto-selected.<p/>

<s:select label="Pets"
       name="petIds"
       list="petDao.pets"
       listKey="id"
       listValue="name"
       multiple="true"
       size="3"
       required="true"
       value="%{petDao.pets.{id}}"
/>

<s:select label="Months"
       name="months"
       headerKey="-1" headerValue="Select Month"
       list="#{'01':'Jan', '02':'Feb', [...]}"
       value="selectedMonth"
       required="true"
/>

// The month id (01, 02, ...) returned by the getSelectedMonth() call
// against the stack will be auto-selected