Example
A disabled <keygen> element:
<form action="demo_keygen.asp" method="get">
Username: <input type="text" name="usr_name">
Encryption: <keygen name="security" disabled>
<input type="submit">
</form>
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Definition and Usage
The disabled attribute is a boolean attribute.
When present, it specifies that a <keygen> element should be disabled. A disabled field is unusable and un-editable.
The disabled attribute can be set to keep a user from using the field until some other condition has been met (like selecting a checkbox, etc.). Then, a JavaScript could remove the disabled value, and make the field usable.
Browser Support
The numbers in the table specify the first browser version that fully supports the attribute.
| Attribute | |||||
|---|---|---|---|---|---|
| disabled | Yes | Not supported | Yes | 6.0 | Yes |
Differences Between HTML 4.01 and HTML5
The <keygen> tag is new in HTML5.
Differences Between HTML and XHTML
In XHTML, attribute minimization is forbidden, and the disabled attribute must be defined as <keygen disabled="disabled" />.
Syntax
<keygen disabled>