YUI Library Examples: Button Control: Radio Buttons

Creating Radio Buttons

The ButtonGroup class creates a set of Buttons that are mutually exclusive; checking one button in the group will uncheck all others in the group. The ButtonGroup class is defined by YAHOO.widget.ButtonGroup and a ButtonGroup's root HTML element is a <div/>.

A ButtonGroup can be instantiated three different ways:

Using an existing set of <input type="radio"/> elements
Using an existing set of Buttons defined using Button Control HTML
Using no existing HTML

Using an existing set of `<input type="radio"/>` elements

A ButtonGroup can be created from a set of existing <input type="radio"/> elements:


1	<div id="buttongroup1" class="yui-buttongroup">
2	<input id="radio1" type="radio" name="radiofield1" value="Radio 1" checked>
3	<input id="radio2" type="radio" name="radiofield1" value="Radio 2">
4	<input id="radio3" type="radio" name="radiofield1" value="Radio 3">
5	<input id="radio4" type="radio" name="radiofield1" value="Radio 4">
6	</div>
	view plain \| print \| ?

To instantiate a ButtonGroup from existing HTML, pass the id of the ButtonGroup's <div/> element as the first argument to the ButtonGroup constructor and any additional configuration attributes as the second argument via an object literal. The ButtonGroup will automatically search its child nodes for HTML radio buttons (<input type="radio"/>) and use those elements to create instances of YAHOO.widget.Button of type "radio."


1	var oButtonGroup1 = new YAHOO.widget.ButtonGroup("buttongroup1")
	view plain \| print \| ?

Using an existing set of Buttons defined using Button Control HTML

Alternatively, each Button in a ButtonGroup can be defined using the YUI Button HTML: An element with a class of "yui-button" and "yui-radio-button" containing a element with a class of "first-child" containing a <button/> element.


1	<div id="buttongroup2" class="yui-buttongroup">
2	<span id="radio5" class="yui-button yui-radio-button yui-button-checked">
3	<span class="first-child">
4	<button type="button" name="radiofield2" value="Radio 5">
5	Radio 5
6	</button>
7	</span>
8	</span>
9	<span id="radio6" class="yui-button yui-radio-button">
10	<span class="first-child">
11	<button type="button" name="radiofield2" value="Radio 6">
12	Radio 6
13	</button>
14	</span>
15	</span>
16	<span id="radio7" class="yui-button yui-radio-button">
17	<span class="first-child">
18	<button type="button" name="radiofield2" value="Radio 7">
19	Radio 7
20	</button>
21	</span>
22	</span>
23	<span id="radio8" class="yui-button yui-radio-button">
24	<span class="first-child">
25	<button type="button" name="radiofield2" value="Radio 8">
26	Radio 8
27	</button>
28	</span>
29	</span>
30	</div>
	view plain \| print \| ?

<div id="buttongroup2" class="yui-buttongroup">
    <span id="radio5" class="yui-button yui-radio-button yui-button-checked">
        <span class="first-child">
            <button type="button" name="radiofield2" value="Radio 5">
                Radio 5
            </button>
        </span>
    </span>
    <span id="radio6" class="yui-button yui-radio-button">
        <span class="first-child">
            <button type="button" name="radiofield2" value="Radio 6">
                Radio 6
            </button>
        </span>
    </span>
    <span id="radio7" class="yui-button yui-radio-button">
        <span class="first-child">
            <button type="button" name="radiofield2" value="Radio 7">
                Radio 7
            </button>
        </span>
    </span>
    <span id="radio8" class="yui-button yui-radio-button">
        <span class="first-child">
            <button type="button" name="radiofield2" value="Radio 8">
                Radio 8
            </button>
        </span>
    </span>
</div>

To instantiate a ButtonGroup using the Button Control HTML, pass the id of the ButtonGroup's root element (the element with the classes "yui-buttongroup" and "yui-radio-button" applied) as the first argument to constructor and any additional configuration attributes as the second argument via an object literal.


1	var oButtonGroup2 = new YAHOO.widget.ButtonGroup("buttongroup2");
	view plain \| print \| ?

Using no existing HTML

To build a ButtonGroup with no existing HTML, pass a set of configuration attributes as a single argument to the ButtonGroup constructor using an object literal. Add buttons to the ButtonGroup via the addButton or addButtons methods.


1	var oButtonGroup3 = new YAHOO.widget.ButtonGroup({
2	id: "buttongroup3",
3	name: "radiofield3",
4	container: "radiobuttonsfromjavascript" });
5
6	oButtonGroup3.addButtons([
7
8	{ label: "Radio 9", value: "Radio 9", checked: true },
9	{ label: "Radio 10", value: "Radio 10" },
10	{ label: "Radio 11", value: "Radio 11" },
11	{ label: "Radio 12", value: "Radio 12" }
12
13	]);
	view plain \| print \| ?

In most cases, it is necessary to specify the ButtonGroup's id and container (the HTML element that the ButtonGroup should be appended to once created). If an id is not specified for the ButtonGroup, one will be generated using the generateId method of the Dom utility.

YUI Logger Output:

Logger Console

INFO2060ms (+1) 7:29:04 AM:
Button  loggerLink
Initialization completed.

INFO2059ms (+0) 7:29:04 AM:

Button loggerLink

Setting attribute "href" using source element's attribute value of "btn_example04.html"

INFO2059ms (+17) 7:29:04 AM:

Button loggerLink

Building the button using an existing HTML element as a source element.

INFO2042ms (+731) 7:29:04 AM:
LogReader  instance0
LogReader initialized

INFO1311ms (+0) 7:29:03 AM:
ButtonGroup  buttongroup2
Initialization completed.

INFO1311ms (+0) 7:29:03 AM:

ButtonGroup buttongroup2

Searching for child nodes with the type of "radio" to add to the button group.

INFO1311ms (+0) 7:29:03 AM:
ButtonGroup  buttongroup2
4 buttons added.

INFO1311ms (+0) 7:29:03 AM:
ButtonGroup  buttongroup2
Button radio8 added.

INFO1311ms (+0) 7:29:03 AM:
Button  radio8
Initialization completed.

INFO1311ms (+0) 7:29:03 AM:

Button radio8

Setting attribute "value" using source element's attribute value of "Radio 8"

INFO1311ms (+0) 7:29:03 AM:

Button radio8

Setting attribute "name" using source element's attribute value of "radiofield2"

INFO1311ms (+0) 7:29:03 AM:

Button radio8

Building the button using an existing HTML element as a source element.

INFO1311ms (+0) 7:29:03 AM:
ButtonGroup  buttongroup2
Button radio7 added.

INFO1311ms (+1) 7:29:03 AM:
Button  radio7
Initialization completed.

INFO1310ms (+0) 7:29:03 AM:

Button radio7

Setting attribute "value" using source element's attribute value of "Radio 7"

INFO1310ms (+0) 7:29:03 AM:

Button radio7

Setting attribute "name" using source element's attribute value of "radiofield2"

INFO1310ms (+0) 7:29:03 AM:

Button radio7

Building the button using an existing HTML element as a source element.

INFO1310ms (+0) 7:29:03 AM:
ButtonGroup  buttongroup2
Button radio6 added.

INFO1310ms (+8) 7:29:03 AM:
Button  radio6
Initialization completed.

INFO1302ms (+0) 7:29:03 AM:

Button radio6

Setting attribute "value" using source element's attribute value of "Radio 6"

INFO1302ms (+0) 7:29:03 AM:

Button radio6

Setting attribute "name" using source element's attribute value of "radiofield2"

INFO1302ms (+0) 7:29:03 AM:

Button radio6

Building the button using an existing HTML element as a source element.

INFO1302ms (+0) 7:29:03 AM:
ButtonGroup  buttongroup2
Button radio5 added.

INFO1302ms (+1) 7:29:03 AM:
Button  radio5
Initialization completed.

INFO1301ms (+0) 7:29:03 AM:

Button radio5

Setting attribute "value" using source element's attribute value of "Radio 5"

INFO1301ms (+1) 7:29:03 AM:

Button radio5

Setting attribute "name" using source element's attribute value of "radiofield2"

INFO1300ms (+0) 7:29:03 AM:

Button radio5

Building the button using an existing HTML element as a source element.

INFO1300ms (+0) 7:29:03 AM:
ButtonGroup  buttongroup2
Found 4 child nodes with the class name "yui-radio-button."  Attempting to add to button group.

INFO1300ms (+0) 7:29:03 AM:
ButtonGroup  buttongroup2
Searching for child nodes with the class name "yui-radio-button" to add to the button group.

INFO1300ms (+0) 7:29:03 AM:
ButtonGroup  buttongroup1
Initialization completed.

INFO1300ms (+0) 7:29:03 AM:
ButtonGroup  buttongroup1
4 buttons added.

INFO1300ms (+0) 7:29:03 AM:
ButtonGroup  buttongroup1
Button radio4 added.

INFO1300ms (+0) 7:29:03 AM:
Button  radio4
Initialization completed.

INFO1300ms (+0) 7:29:03 AM:

Button radio4

Source element could not be used as is. Creating a new HTML element for the button.

INFO1300ms (+0) 7:29:03 AM:

Button radio4

Setting attribute "value" using source element's attribute value of "Radio 4"

INFO1300ms (+0) 7:29:03 AM:

Button radio4

Setting attribute "name" using source element's attribute value of "radiofield1"

INFO1300ms (+0) 7:29:03 AM:

Button radio4

Building the button using an existing HTML element as a source element.

INFO1300ms (+0) 7:29:03 AM:
ButtonGroup  buttongroup1
Button radio3 added.

INFO1300ms (+3) 7:29:03 AM:
Button  radio3
Initialization completed.

INFO1297ms (+0) 7:29:03 AM:

Button radio3

Source element could not be used as is. Creating a new HTML element for the button.

INFO1297ms (+0) 7:29:03 AM:

Button radio3

Setting attribute "value" using source element's attribute value of "Radio 3"

INFO1297ms (+0) 7:29:03 AM:

Button radio3

Setting attribute "name" using source element's attribute value of "radiofield1"

INFO1297ms (+0) 7:29:03 AM:

Button radio3

Building the button using an existing HTML element as a source element.

INFO1297ms (+0) 7:29:03 AM:
ButtonGroup  buttongroup1
Button radio2 added.

INFO1297ms (+0) 7:29:03 AM:
Button  radio2
Initialization completed.

INFO1297ms (+0) 7:29:03 AM:

Button radio2

Source element could not be used as is. Creating a new HTML element for the button.

INFO1297ms (+0) 7:29:03 AM:

Button radio2

Setting attribute "value" using source element's attribute value of "Radio 2"

INFO1297ms (+1) 7:29:03 AM:

Button radio2

Setting attribute "name" using source element's attribute value of "radiofield1"

INFO1296ms (+0) 7:29:03 AM:

Button radio2

Building the button using an existing HTML element as a source element.

INFO1296ms (+0) 7:29:03 AM:
ButtonGroup  buttongroup1
Button radio1 added.

INFO1296ms (+1) 7:29:03 AM:
Button  radio1
Initialization completed.

INFO1295ms (+0) 7:29:03 AM:

Button radio1

Source element could not be used as is. Creating a new HTML element for the button.

INFO1295ms (+0) 7:29:03 AM:

Button radio1

Setting attribute "value" using source element's attribute value of "Radio 1"

INFO1295ms (+0) 7:29:03 AM:

Button radio1

Setting attribute "name" using source element's attribute value of "radiofield1"

INFO1295ms (+0) 7:29:03 AM:

Button radio1

Building the button using an existing HTML element as a source element.

INFO1295ms (+0) 7:29:03 AM:

ButtonGroup buttongroup1

Found 4 child nodes with the type of "radio." Attempting to add to button group.

INFO1295ms (+0) 7:29:03 AM:

ButtonGroup buttongroup1

Searching for child nodes with the type of "radio" to add to the button group.

INFO1295ms (+44) 7:29:03 AM:
ButtonGroup  buttongroup1
Searching for child nodes with the class name "yui-radio-button" to add to the button group.

INFO1251ms (+0) 7:29:03 AM:
ButtonGroup  undefined
4 buttons added.

INFO1251ms (+0) 7:29:03 AM:
ButtonGroup  undefined
Button yui-gen3 added.

INFO1251ms (+0) 7:29:03 AM:
Button  yui-gen3
Initialization completed.

INFO1251ms (+0) 7:29:03 AM:

Button yui-gen3

No source HTML element. Building the button using the set of configuration attributes.

WARN1251ms (+0) 7:29:03 AM:

global

No value specified for the button's "id" attribute. Setting button id to "yui-gen3".

INFO1251ms (+0) 7:29:03 AM:
ButtonGroup  undefined
Button yui-gen2 added.

INFO1251ms (+1) 7:29:03 AM:
Button  yui-gen2
Initialization completed.

INFO1250ms (+0) 7:29:03 AM:

Button yui-gen2

No source HTML element. Building the button using the set of configuration attributes.

WARN1250ms (+0) 7:29:03 AM:

global

No value specified for the button's "id" attribute. Setting button id to "yui-gen2".

INFO1250ms (+0) 7:29:03 AM:
ButtonGroup  undefined
Button yui-gen1 added.

INFO1250ms (+1) 7:29:03 AM:
Button  yui-gen1
Initialization completed.

INFO1249ms (+0) 7:29:03 AM:

Button yui-gen1

No source HTML element. Building the button using the set of configuration attributes.

WARN1249ms (+1) 7:29:03 AM:

global

No value specified for the button's "id" attribute. Setting button id to "yui-gen1".

INFO1248ms (+0) 7:29:03 AM:
ButtonGroup  undefined
Button yui-gen0 added.

INFO1248ms (+6) 7:29:03 AM:
Button  yui-gen0
Initialization completed.

INFO1242ms (+0) 7:29:03 AM:

Button yui-gen0

No source HTML element. Building the button using the set of configuration attributes.

WARN1242ms (+2) 7:29:03 AM:

global

No value specified for the button's "id" attribute. Setting button id to "yui-gen0".

INFO1240ms (+1) 7:29:03 AM:
ButtonGroup  undefined
Initialization completed.

INFO1239ms (+0) 7:29:03 AM:

ButtonGroup undefined

Searching for child nodes with the type of "radio" to add to the button group.

INFO1239ms (+1) 7:29:03 AM:
ButtonGroup  undefined
Searching for child nodes with the class name "yui-radio-button" to add to the button group.

INFO1238ms (+1238) 7:29:03 AM:

ButtonGroup undefined

No source HTML element. Building the button group using the set of configuration attributes.

INFO0ms (+0) 7:29:02 AM:
global
Logger initialized

Note: You are viewing this example in debug mode with logging enabled. This can significantly slow performance.

Reload with logging
and debugging disabled.

YUI Library Examples: Button Control: Radio Buttons

Creating Radio Buttons

Using an existing set of `<input type="radio"/>` elements

Using an existing set of Buttons defined using Button Control HTML

Using no existing HTML

YUI Logger Output:

Logger Console

Button Control Examples:

More Button Control Resources:

YUI Library Examples: Button Control: Radio Buttons

Button Control: Radio Buttons

Creating Radio Buttons

Using an existing set of <input type="radio"/> elements

Using an existing set of Buttons defined using Button Control HTML

Using no existing HTML

YUI Logger Output:

Logger Console

Button Control Examples:

More Button Control Resources:

Using an existing set of `<input type="radio"/>` elements