# <netui:selectOption> Tag

Renders a single <option> tag.

## Syntax

<netui:selectOption
[disabled="boolean_disabled"]
[id="string_id"]
[onClick="string_onClick"]
[onDblClick="string_onDblClick"]
[onKeyDown="string_onKeyDown"]
[onKeyPress="string_onKeyPress"]
[onKeyUp="string_onKeyUp"]
[onMouseDown="string_onMouseDown"]
[onMouseMove="string_onMouseMove"]
[onMouseOut="string_onMouseOut"]
[onMouseOver="string_onMouseOver"]
[onMouseUp="string_onMouseUp"]
[style="string_Style"]
[styleClass="string_Class"]
[tabindex="string_tabIndex"]
[tagId="string_tagId"]
value="string_or_expression_value" />

## Description

Renders a single <option> tag.

The <netui:selectOption> must have a parent <netui:select> tag.

To dynamically generate a set of <option> tags, point the <netui:select> tag at a String[], java.util.HashMap , or any object that implements java.util.Map .

## Attributes

disabled | Boolean. Determines whether the <option> is disabled.
Required | Supports runtime expression evaluation | Data bindable
No | No | Read Only
id | The id attribute is deprecated, use the tagId attribute instead. The id attribute of the rendered HTML tag. You should use the tagId attribute which will encode the id correctly for containers such as the Portal which needs to rewrite id's to make them unique.
Required | Supports runtime expression evaluation | Data bindable
No | No | No
onClick | The onClick JavaScript event.
Required | Supports runtime expression evaluation | Data bindable
No | Yes | No
onDblClick | The onDblClick JavaScript event.
Required | Supports runtime expression evaluation | Data bindable
No | Yes | No
onKeyDown | The onKeyDown JavaScript event.
Required | Supports runtime expression evaluation | Data bindable
No | Yes | No
onKeyPress | The onKeyPress JavaScript event.
Required | Supports runtime expression evaluation | Data bindable
No | Yes | No
onKeyUp | The onKeyUp JavaScript event.
Required | Supports runtime expression evaluation | Data bindable
No | Yes | No
onMouseDown | The onMouseDown JavaScript event.
Required | Supports runtime expression evaluation | Data bindable
No | Yes | No
onMouseMove | The onMouseMove JavaScript event.
Required | Supports runtime expression evaluation | Data bindable
No | Yes | No
onMouseOut | The onMouseOut JavaScript event.
Required | Supports runtime expression evaluation | Data bindable
No | Yes | No
onMouseOver | The onMouseOver JavaScript event.
Required | Supports runtime expression evaluation | Data bindable
No | Yes | No
onMouseUp | The onMouseUp JavaScript event.
Required | Supports runtime expression evaluation | Data bindable
No | Yes | No
style | The style of the rendered HTML tag.
Required | Supports runtime expression evaluation | Data bindable
No | No | No
styleClass | The class of the rendered HTML tag.
Required | Supports runtime expression evaluation | Data bindable
No | No | No
tabindex | The tabIndex of the rendered HTML tag. This attribute determines the position of the tag in the sequence of page elements that the user may advance through by pressing the TAB key.
Required | Supports runtime expression evaluation | Data bindable
No | No | No
tagId | String value. Sets the `id` (or `name`) attribute of the rendered HTML tag. Note that the real id attribute rendered in the browser may be changed by the application container (for example, Portal containers may change the rendered id value to ensure the uniqueness of id's on the page). In this case, the real id rendered in the browser may be looked up through the JavaScript function getNetuiTagName( tagId, tag ). For example, assume that some tag's `tagId` attribute is set to `foo`.
        <netui:textBox tagId="foo" />
Then the following JavaScript function will return the real id attribute rendered in the browser:
        getNetuiTagName( "foo", this )
To get a <netui:form> element and all of its children elements in JavaScript, use the same JavaScript function `getNetuiTagName( tagId, tag )`. For example, assume that there is a <netui:form> whose tagId attribute is set to `bar`.
        <netui:form tagId="bar" >
Then the following JavaScript function will return the <netui:form> element and its children (packaged as an array).
        document[getNetuiTagName( "bar", this )]
To retreive the value entered into a <netui:textBox> within the <netui:form> tag, use the following JavaScript expression.
        document[getNetuiTagName("bar", this)][getNetuiTagName("foo", this)].value
The second parameter ensures that the JavaScript function begins its search within the correct Portlet scope. Pass the JavaScript keyword `this` as the second parameter. For detailed information on using the function `getNetuiTagName( tagId, tag )` see Using JavaScript in Page Flow and Portal Applications.
Required | Supports runtime expression evaluation | Data bindable
No | Yes | No
value | A literal or a data binding expression that determines the value submitted by the <option> tag.
Required | Supports runtime expression evaluation | Data bindable
Yes | Yes | Read Only

## Sample

The following sample generates a set of <option> tags.

        <netui:form action="submit">
            <netui:select dataSource="{actionForm.selections}" size="5">
                <netui:selectOption value="red" />
                <netui:selectOption value="blue" />
                <netui:selectOption value="green" />
                <netui:selectOption value="yellow" />
                <netui:selectOption value="orange" />
            </netui:select>
            <netui:button type="submit" value="Submit"/>
        </netui:form>

## Sample Code

[BEA_HOME]/weblogic81/samples/workshop/SamplesApp/WebApp/tagSamples/netui/select/

## Related Topics

<netui:select> Tag Sample

<netui:select> Tag