WML optgroup tag

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# WML <optgroup> tag

Complete WML Reference

The <optgroup> tag defines a group of options in a selectable list.

Note: The <optgroup> tag must go inside the select element.

## Syntax

    <select>
     <optgroup>
      <option>text</option>
      <option>text</option>
     </optgroup>
      <optgroup>
      <option>text</option>
      <option>text</option>
     </optgroup>
    </select>

## Attributes

Attribute | Value | Description
--- | --- | ---
title | cdata | Sets a title for the optgroup element
xml:lang | language_code | Sets the language used in the element
class | cdata | Sets a class name for the element. The class name is case sensitive. An element can be connected to multiple classes. Multiple class names within the class attribute are separated by white space
id | id | Sets a unique name for the element

## Examples

    <?xml version="1.0"?>
    <!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN"
    "http://www.wapforum.org/DTD/wml_1.1.xml">

    <wml>
    <card title="Selectable List">
    <p>
     <select>
       <optgroup title="HTML Tutorials">
        <option value="html">HTML Tutorial</option>
        <option value="css">CSS Tutorial</option>
        <option value="dhtml">XHTML Tutorial</option>
       </optgroup>
       <optgroup title="XML Tutorials">
        <option value="xml">XML Tutorial</option>
        <option value="xsl">XSL Tutorial</option>
        <option value="xforms">XForms Tutorial</option>
       </optgroup>
     </select>
    </p>
    </card>
    </wml>

Complete WML Reference

From http://www.w3schools.com (Copyright Refsnes Data)