An element that can be turned on and off. Radio buttons are almost always grouped together in groups. Only one radio button within the same radiogroup
may be selected at a time. The user can switch which radio button is turned on by selecting it with the mouse or keyboard. Other radio buttons in the same group are turned off. A label, specified with the label
attribute may be added beside the radio button.
More information is available in the XUL tutorial.
- Attributes
- accesskey, command, crop, disabled, focused, group, image, label, selected, tabindex, value
- Properties
- accessKey, accessibleType, control, crop, disabled, image, label, radioGroup, selected, tabIndex, value
Examples
<radiogroup> <radio id="orange" label="Red" accesskey="R"/> <radio id="violet" label="Green" accesskey="G" selected="true"/> <radio id="yellow" label="Blue" accesskey="B" disabled="true"/> </radiogroup>
Attributes
-
accesskey
- Type: character
- This should be set to a letter that is used as a shortcut key. This letter should be one of the characters that appears in the
text for the element.label
Example
<vbox> <label value="Enter Name" accesskey="e" control="myName"/> <textbox id="myName"/> <button label="Cancel" accesskey="n"/> <button label="Ok" accesskey="O"/> </vbox>
See also
-
crop
- Type: one of the values below
- If the label of the element is too big to fit in its given space, the text will be cropped on the side specified by the
crop
attribute. An ellipsis will be used in place of the cropped text. If the box direction is reversed, the cropping is reversed.
-
start
: The text will be cropped on its left side. -
end
: The text will be cropped on its right side. -
left
: The text will be cropped on its left side. -
right
: The text will be cropped on its right side. -
center
: The text will be cropped in the middle, showing both the start and end of the text normally. -
none
: The text will be not be cropped using an ellipsis. However, the text will simply be cut off if it is too large. The side depends on the CSS text alignment.
-
disabled
- Type: boolean
- Indicates whether the element is disabled or not. If this element is set to
true
the element is disabled. Disabled elements are usually drawn with grayed-out text. If the element is disabled, it does not respond to user actions, it cannot be focused, and thecommand
event will not fire.
<!-- Checkbox enables/disables the button --> <checkbox label="Enable button" onclick="document.getElementById('buttRemove').disabled = this.checked"/> <button id="buttRemove" label="Remove All" disabled="true"/>
-
focused
- Type: boolean
- This attribute is
true
if the element is focused.
-
group
- Type: string group name
- Buttons with type="radio" and the same value for their group attribute are put into the same group. Only one button from each group can be checked at a time. If the user selects one the buttons, the others in the group are unchecked.
label
- Type: string
- The label that will appear on the element. If this is left out, no text appears.
label 在元素上显示。如果左侧出界,则不显示任何文字。
-
selected
- Type: boolean
- Indicates whether the element is selected or not. This value is read-only. To change the selection, set either the
selectedIndex
orselectedItem
property of the containing element.
-
tabindex
- Type: integer
- The tab order of the element. The tab order is the order in which the focus is moved when the user presses the "<kbd>tab</kbd>" key. Elements with a higher
tabindex
are later in the tab sequence.
-
value
- Type: string
- The string attribute allows you to associate a data value with an element. It is not used for any specific purpose, but you can access it with a script for your own use.
Properties
-
accessibleType
- Type: integer
- A value indicating the type of accessibility object for the element.
-
control
- Type:
radiogroup
element - Returns the enclosing
radiogroup
that theradio
element is contained within, which may or may not be its direct parent.
-
radioGroup
- Type:
radiogroup
element - Equivalent to the
control
property.
{{ languages( { "fr": "fr/XUL/Propri\u00e9t\u00e9s/selected", "ja": "ja/XUL/Property/selected" } ) }}
- {{ XULProp("selected") }} {{ mediawiki['#switch']('<magic name="\"PAGENAME\"/">', XUL:menuitem, XUL:menuseparator = .. '<template><name>' .. Fx_minversion_inline .. '</name><arg>' .. 3 .. '</arg></template>') }}</magic>
- Type: boolean
- This property's value is
true
if this element is selected, orfalse
if it is not. This property is read only.
Methods
Related
- Elements
-
radiogroup
,checkbox