HTML <optgroup> disabled egenskab
Definition og brug
disabled
Egenskab er en boolsk egenskab.
When present, it specifies that the option group should be disabled.
Disabled option groups are not available and cannot be clicked.
Can be set disabled
Properties are set to prevent the user from selecting the option group until certain other conditions are met (such as checking a checkbox, etc.). Then, JavaScript needs to be used to remove the disabled value, making the option group selectable.
Example
Disabled option group:
<label for="cars">Please select an automotive brand:</label> <select name="cars" id="cars"> <optgroup label="German cars" disabled> <option value="mercedes">Mercedes</option> <option value="audi">Audi</option> </optgroup> </select>
Syntax
<optgroup disabled>
Browser support
The numbers in the table indicate the first browser version that fully supports this property.
Chrome | Edge | Firefox | Safari | Opera |
---|---|---|---|---|
Chrome | Edge | Firefox | Safari | Opera |
Support | 8.0 | Support | Support | Support |