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HTML <optgroup> disabled Attribute

HTML optgroup Tag Reference HTML <optgroup> tag

Example

A disabled option-group:

<select>
  <optgroup label="German Cars" disabled>
    <option value="mercedes">Mercedes</option>
    <option value="audi">Audi</option>
  </optgroup>
</select>

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Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The disabled attribute is supported by all major browsers.

Note: The disabled attribute of the <optgroup> tag is not supported in Internet Explorer 7 and earlier versions.


Definition and Usage

The disabled attribute is a boolean attribute.

When present, it specifies that an option-group should be disabled.

A disabled option-group is unusable and un-clickable.

The disabled attribute can be set to keep a user from selecting the option-group until some other condition has been met (like selecting a checkbox, etc.). Then, a JavaScript is required to remove the disabled value, and make the option-group selectable.


Differences Between HTML 4.01 and HTML5

NONE.


Differences Between HTML and XHTML

In XHTML, attribute minimization is forbidden, and the disabled attribute must be defined as <optgroup disabled="disabled">.


Syntax

<optgroup disabled>


HTML optgroup Tag Reference HTML <optgroup> tag

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