apex:selectList

A list of options that allows users to select only one value or multiple values at a time, depending on the value of its multiselect attribute.

This component supports HTML pass-through attributes using the "html-" prefix. Pass-through attributes are attached to the generated <select> tag.

Example

<!-- Page: -->
                        
<apex:page controller="sampleCon"> <apex:form> <apex:selectList value="{!countries}" multiselect="true"> <apex:selectOptions value="{!items}"/> </apex:selectList><p/> <apex:commandButton value="Test" action="{!test}" rerender="out" status="status"/> </apex:form> <apex:outputPanel id="out"> <apex:actionstatus id="status" startText="testing..."> <apex:facet name="stop"> <apex:outputPanel> <p>You have selected:</p> <apex:dataList value="{!countries}" var="c">{!c}</apex:dataList> </apex:outputPanel> </apex:facet> </apex:actionstatus> </apex:outputPanel> </apex:page> /*** Controller: ***/
    public class sampleCon { String[] countries = new String[]{}; public PageReference test() { return null; } public List<SelectOption> getItems() { List<SelectOption> options = new List<SelectOption>(); options.add(new SelectOption('US','US')); options.add(new SelectOption('CANADA','Canada')); options.add(new SelectOption('MEXICO','Mexico')); return options; } public String[] getCountries() { return countries; } public void setCountries(String[] countries) { this.countries = countries; } }

Attributes

Attribute Name Attribute Type Description Required? API Version Access
accesskey String The keyboard access key that puts the selectList in focus. When the selectList is in focus, a user can select or deselect list options. 10.0 global
dir String The direction in which the generated HTML component should be read. Possible values include "RTL" (right to left) or "LTR" (left to right). 10.0 global
disabled Boolean A Boolean value that specifies whether this selectList should be displayed in a disabled state. If set to true, the selectList appears disabled. If not specified, this value defaults to false. 10.0 global
disabledClass String The style class used to display the selectList component when the disabled attribute is set to true, used primarily to designate which CSS styles are applied when using an external CSS stylesheet. 10.0 global
enabledClass String The style class used to display the selectList component when the disabled attribute is set to false, used primarily to designate which CSS styles are applied when using an external CSS stylesheet. 10.0 global
id String An identifier that allows the selectList component to be referenced by other components in the page. 10.0 global
label String A text value that allows to display a label next to the control and reference the control in the error message 23.0
lang String The base language for the generated HTML output, for example, "en" or "en-US". For more information on this attribute, see the W3C specifications. 10.0 global
multiselect Boolean A Boolean value that specifies whether users can select more than one option as a time from this selectList. If set to true, users can select more than one option at a time. If not specified, this value defaults to false. If multiselect is true, the value attribute must be of type String[] or a List of strings. Otherwise, it must be of type String. 10.0 global
onblur String The JavaScript invoked if the onblur event occurs--that is, if the focus moves off of the selectList component. 10.0 global
onchange String The JavaScript invoked if the onchange event occurs--that is, if the value of the selectList component changes. 10.0 global
onclick String The JavaScript invoked if the onclick event occurs--that is, if the user clicks the selectList component. 10.0 global
ondblclick String The JavaScript invoked if the onclick event occurs--that is, if the user clicks the selectList component twice. 10.0 global
onfocus String The JavaScript invoked if the onfocus event occurs--that is, if the focus is on the selectList component. 10.0 global
onkeydown String The JavaScript invoked if the onkeydown event occurs--that is, if the user presses a keyboard key. 10.0 global
onkeypress String The JavaScript invoked if the onkeypress event occurs--that is, if the user presses or holds down a keyboard key. 10.0 global
onkeyup String The JavaScript invoked if the onkeyup event occurs--that is, if the user releases a keyboard key. 10.0 global
onmousedown String The JavaScript invoked if the onmousedown event occurs--that is, if the user clicks a mouse button. 10.0 global
onmousemove String The JavaScript invoked if the onmousemove event occurs--that is, if the user moves the mouse pointer. 10.0 global
onmouseout String The JavaScript invoked if the onmouseout event occurs--that is, if the user moves the mouse pointer away from the selectList component. 10.0 global
onmouseover String The JavaScript invoked if the onmouseover event occurs--that is, if the user moves the mouse pointer over the selectList component. 10.0 global
onmouseup String The JavaScript invoked if the onmouseup event occurs--that is, if the user releases the mouse button. 10.0 global
onselect String The JavaScript invoked if the onselect event occurs--that is, if the user selects an option in the selectList component. 10.0 global
readonly Boolean A Boolean value that specifies whether this selectList component is rendered as read-only. If set to true, the list option selections cannot be changed. If not selected, this value defaults to false. 10.0 global
rendered Boolean A Boolean value that specifies whether the component is rendered on the page. If not specified, this value defaults to true. 10.0 global
required Boolean A Boolean value that specifies whether this selectList component is a required field. If set to true, the user must select at least one list option. If not selected, this value defaults to false. 10.0 global
size Integer The number of selectList options displayed at one time. If this number is less than the total number of options, a scroll bar is displayed in the selectList. If not specified, all available options are displayed. 10.0 global
style String The style used to display the selectList component, used primarily for adding inline CSS styles. 10.0 global
styleClass String The style class used to display the selectList component, used primarily to designate which CSS styles are applied when using an external CSS stylesheet. 10.0 global
tabindex String The order in which this selectList component is selected compared to other page components when a user presses the Tab key repeatedly. This value must be an integer between 0 and 32767, with component 0 being the first component that is selected when a user presses the Tab key. 10.0 global
title String The text to display as a tooltip when the user's mouse pointer hovers over this component. 10.0 global
value Object A merge field that references the controller class variable that is associated with this selectList. For example, if the name of the associated variable in the controller class is myListSelections, use value="{!myListSelections}" to reference the variable. If multiselect is true, the value attribute must be of type String[] or a List of strings. Otherwise, it must be of type String. 10.0 global
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