layout: default title: Tag Developers Guide

select

Please make sure you have read the Tag Syntax document and understand how tag attribute syntax works.

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Description

{% comment %}start snippet id=javadoc|javadoc=true|url=org.apache.struts2.components.Select {% endcomment %}

Parameters

{% comment %}start snippet id=tagattributes|javadoc=false|url=struts2-tags/select.html {% endcomment %}

		<tr>

			<td colspan="6"><h4>Dynamic Attributes Allowed:</h4> true</td>

		</tr>

		<tr>

			<td colspan="6">&nbsp;</td>

		</tr>

		<tr>

			<th align="left" valign="top"><h4>Name</h4></th>

			<th align="left" valign="top"><h4>Required</h4></th>

			<th align="left" valign="top"><h4>Default</h4></th>

			<th align="left" valign="top"><h4>Evaluated</h4></th>

			<th align="left" valign="top"><h4>Type</h4></th>

			<th align="left" valign="top"><h4>Description</h4></th>

		</tr>

			<tr>

				<td align="left" valign="top">accesskey</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the html accesskey attribute on rendered html element</td>

			</tr>

			<tr>

				<td align="left" valign="top">class</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">The css class to use for element - it's an alias of cssClass attribute.</td>

			</tr>

			<tr>

				<td align="left" valign="top">cssClass</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">The css class to use for element</td>

			</tr>

			<tr>

				<td align="left" valign="top">cssErrorClass</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">The css error class to use for element</td>

			</tr>

			<tr>

				<td align="left" valign="top">cssErrorStyle</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">The css error style definitions for element to use</td>

			</tr>

			<tr>

				<td align="left" valign="top">cssStyle</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">The css style definitions for element to use</td>

			</tr>

			<tr>

				<td align="left" valign="top">disabled</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the html disabled attribute on rendered html element</td>

			</tr>

			<tr>

				<td align="left" valign="top">emptyOption</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">Boolean</td>

				<td align="left" valign="top">Whether or not to add an empty (--) option after the header option</td>

			</tr>

			<tr>

				<td align="left" valign="top">errorPosition</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Define error position of form element (top|bottom)</td>

			</tr>

			<tr>

				<td align="left" valign="top">headerKey</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top"> Key for first item in list. Must not be empty! '-1' and '' is correct, '' is bad.</td>

			</tr>

			<tr>

				<td align="left" valign="top">headerValue</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Value expression for first item in list</td>

			</tr>

			<tr>

				<td align="left" valign="top">id</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">HTML id attribute</td>

			</tr>

			<tr>

				<td align="left" valign="top">javascriptTooltip</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">Boolean</td>

				<td align="left" valign="top">Use JavaScript to generate tooltips</td>

			</tr>

			<tr>

				<td align="left" valign="top">key</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the key (name, value, label) for this particular component</td>

			</tr>

			<tr>

				<td align="left" valign="top">label</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Label expression used for rendering an element specific label</td>

			</tr>

			<tr>

				<td align="left" valign="top">labelSeparator</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">:</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">String that will be appended to the label</td>

			</tr>

			<tr>

				<td align="left" valign="top">labelposition</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Define label position of form element (top/left)</td>

			</tr>

			<tr>

				<td align="left" valign="top">list</td>

				<td align="left" valign="top"><strong>true</strong></td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">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.</td>

			</tr>

			<tr>

				<td align="left" valign="top">listCssClass</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Property of list objects to get css class from</td>

			</tr>

			<tr>

				<td align="left" valign="top">listCssStyle</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Property of list objects to get css style from</td>

			</tr>

			<tr>

				<td align="left" valign="top">listKey</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Property of list objects to get field value from</td>

			</tr>

			<tr>

				<td align="left" valign="top">listLabelKey</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Property of list objects to be used to lookup for localised version of field label</td>

			</tr>

			<tr>

				<td align="left" valign="top">listTitle</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Property of list objects to get title from</td>

			</tr>

			<tr>

				<td align="left" valign="top">listValue</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Property of list objects to get field content from</td>

			</tr>

			<tr>

				<td align="left" valign="top">listValueKey</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Property of list objects to get field value label from</td>

			</tr>

			<tr>

				<td align="left" valign="top">multiple</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">Boolean</td>

				<td align="left" valign="top"> 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</td>

			</tr>

			<tr>

				<td align="left" valign="top">name</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">The name to set for element</td>

			</tr>

			<tr>

				<td align="left" valign="top">onblur</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top"> Set the html onblur attribute on rendered html element</td>

			</tr>

			<tr>

				<td align="left" valign="top">onchange</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the html onchange attribute on rendered html element</td>

			</tr>

			<tr>

				<td align="left" valign="top">onclick</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the html onclick attribute on rendered html element</td>

			</tr>

			<tr>

				<td align="left" valign="top">ondblclick</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the html ondblclick attribute on rendered html element</td>

			</tr>

			<tr>

				<td align="left" valign="top">onfocus</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the html onfocus attribute on rendered html element</td>

			</tr>

			<tr>

				<td align="left" valign="top">onkeydown</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the html onkeydown attribute on rendered html element</td>

			</tr>

			<tr>

				<td align="left" valign="top">onkeypress</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the html onkeypress attribute on rendered html element</td>

			</tr>

			<tr>

				<td align="left" valign="top">onkeyup</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the html onkeyup attribute on rendered html element</td>

			</tr>

			<tr>

				<td align="left" valign="top">onmousedown</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the html onmousedown attribute on rendered html element</td>

			</tr>

			<tr>

				<td align="left" valign="top">onmousemove</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the html onmousemove attribute on rendered html element</td>

			</tr>

			<tr>

				<td align="left" valign="top">onmouseout</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the html onmouseout attribute on rendered html element</td>

			</tr>

			<tr>

				<td align="left" valign="top">onmouseover</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the html onmouseover attribute on rendered html element</td>

			</tr>

			<tr>

				<td align="left" valign="top">onmouseup</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the html onmouseup attribute on rendered html element</td>

			</tr>

			<tr>

				<td align="left" valign="top">onselect</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the html onselect attribute on rendered html element</td>

			</tr>

			<tr>

				<td align="left" valign="top">requiredLabel</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">Boolean</td>

				<td align="left" valign="top">If set to true, the rendered element will indicate that input is required</td>

			</tr>

			<tr>

				<td align="left" valign="top">requiredPosition</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Define required position of required form element (left|right)</td>

			</tr>

			<tr>

				<td align="left" valign="top">size</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">Integer</td>

				<td align="left" valign="top">Size of the element box (# of elements to show)</td>

			</tr>

			<tr>

				<td align="left" valign="top">style</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">The css style definitions for element to use - it's an alias of cssStyle attribute.</td>

			</tr>

			<tr>

				<td align="left" valign="top">tabindex</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the html tabindex attribute on rendered html element</td>

			</tr>

			<tr>

				<td align="left" valign="top">template</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">The template (other than default) to use for rendering the element</td>

			</tr>

			<tr>

				<td align="left" valign="top">templateDir</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">The template directory.</td>

			</tr>

			<tr>

				<td align="left" valign="top">theme</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">The theme (other than default) to use for rendering the element</td>

			</tr>

			<tr>

				<td align="left" valign="top">title</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the html title attribute on rendered html element</td>

			</tr>

			<tr>

				<td align="left" valign="top">tooltip</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Set the tooltip of this particular component</td>

			</tr>

			<tr>

				<td align="left" valign="top">tooltipConfig</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Deprecated. Use individual tooltip configuration attributes instead.</td>

			</tr>

			<tr>

				<td align="left" valign="top">tooltipCssClass</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">StrutsTTClassic</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">CSS class applied to JavaScrip tooltips</td>

			</tr>

			<tr>

				<td align="left" valign="top">tooltipDelay</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">Classic</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Delay in milliseconds, before showing JavaScript tooltips </td>

			</tr>

			<tr>

				<td align="left" valign="top">tooltipIconPath</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Icon path used for image that will have the tooltip</td>

			</tr>

			<tr>

				<td align="left" valign="top">value</td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top"></td>

				<td align="left" valign="top">false</td>

				<td align="left" valign="top">String</td>

				<td align="left" valign="top">Preset the value of input element.</td>

			</tr>

	</table>

Examples

{% comment %}start snippet id=exnote|javadoc=true|lang=none|url=org.apache.struts2.components.Select {% endcomment %}


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.

{% comment %}end snippet id=exnote|javadoc=true|lang=none|url=org.apache.struts2.components.Select {% endcomment %}

{% comment %}start snippet id=example|javadoc=true|lang=xml|url=org.apache.struts2.components.Select {% endcomment %}


<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

{% comment %}end snippet id=example|javadoc=true|lang=xml|url=org.apache.struts2.components.Select {% endcomment %}