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    radio

    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

    Image:XUL_ref_radio.png
    <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 label text for the element.

    Example

    Image:XUL_ref_accesskey_attr.png
    <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

    label attribute, acceltext attribute

    command
    Type: element id
    Set to the id of a command element that is being observed by the element.
    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 the command event will not fire.


    Image:XUL_ref_attr_disabled.png
    <!-- 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.
    image
    Type: image URL
    The URL of the image to appear on the element. If this attribute is empty or left out, no image appears. The position of the image is determined by the dir and orient attributes.
    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 or selectedItem 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

    accessKey
    Type: character
    Gets and sets the value of the accesskey attribute.

    accessibleType
    Type: integer
    A value indicating the type of accessibility object for the element.
    control
    Type: radiogroup element
    Returns the enclosing radiogroup that the radio element is contained within, which may or may not be its direct parent.
    crop
    Type: string
    Gets and sets the value of the crop attribute.

    disabled
    Type: boolean
    Gets and sets the value of the disabled attribute.

    image
    Type: image URL
    Gets and sets the value of the image attribute.

    label
    Type: string
    Gets and sets the value of the label attribute.

    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, or false if it is not. This property is read only.
    tabIndex
    Type: integer
    Gets and sets the value of the tabindex attribute.

    value
    Type: string
    Gets and sets the value of the value attribute.

    Methods

    Inherited from XUL element
    blur, click, doCommand, focus, getElementsByAttribute

    Inherited from DOM element
    addEventListener(), appendChild(), dispatchEvent(), getAttribute(), getAttributeNode(), getAttributeNodeNS(), getAttributeNS(), getElementsByTagName(), getElementsByTagNameNS(), hasAttribute(), hasAttributeNS(), hasAttributes(), hasChildNodes(), insertBefore(), isSupported(), normalize(), removeAttribute(), removeAttributeNode(), removeAttributeNS(), removeChild(), removeEventListener(), replaceChild(), setAttribute(), setAttributeNode(), setAttributeNodeNS(), setAttributeNS()

    Elements
    radiogroup, checkbox
    Interfaces
    nsIAccessibleProvider, nsIDOMXULSelectControlItemElement, nsIDOMXULLabeledControlElement
     

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