This article mainly introduced the jquery Judge Radio (single box) whether to select and get the selected value method summary, this article explains the use of the check value to determine the selection, use the Checked property to determine the selected, jquery get Radio radio button value, get a set of radio the value of the selected item, Set the radio button to be selected and other content, the required friends can refer to the following
first, use to get the selected value to determine the selectedDirectly on the code, don't forget to refer to the jquery package code as follows: <! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<meta http-equiv= "Content-type" content= "text/html; Charset=utf-8 "/>
<title>jquery radio</title>
<script type= "Text/javascript" language= "JavaScript" src= "Javascript/jquery-1.6.1.min.js" ></script>
<script type= "Text/javascript" language= "JavaScript" >
/*------Determine if Radio is selected, get the selected value--------*/
$ (function () {
$ ("#btnSubmit"). Click (function () {
var val=$ (' input:radio[name= ' Sex "]:checked '). Val ();
if (val==null) {
Alert ("Nothing is selected!");
return false;
}
else{
Alert (val);
}
var list= $ (' input:radio[name= ' list "]:checked '). Val ();
if (list==null) {
Alert ("Please select a!");
return false;
}
else{
alert (list);
}
});
});
</script>
<body>
<form id= "Form1" >
<input type= "Radio" name= "Sex" value= "male"/> Male
<input type= "Radio" name= "Sex" value= "female"/> Female
<br/>
<input type= "Radio" name= "list" value= "very satisfied"/> Very satisfied
<input type= "Radio" name= "list" value= "Satisfied"/> Satisfied
<input type= "Radio" name= "list" value= "dissatisfied"/> Dissatisfied
<input type= "Radio" name= "list" value= "very poor"/> very poor
<br/>
<input type= "Submit" value= "Submit" id= "Btnsubmit"/>
</form>
</body>
Radio cannot be judged by the equivalence of "checked", only by using true to judge
The code is as follows:
<script type= "Text/javascript" >
$ (function () {
$ ("Input"). Click (function () {
if ($ (this). attr ("checked")) {
Alert ("Checked");
}
});
});
</script>
<body>
<input type= "Radio"/>
</body>
Second, use the Checked property to determine the selected
Radio cannot be judged by the equivalence of "checked", only by using true to judge
The code is as follows:
<script type= "Text/javascript" >
$ (function () {
$ ("Input"). Click (function () {
if ($ (this). attr ("checked")) {
Alert ("Checked");
}
});
});
</script>
<body>
<input type= "Radio"/>
</body>
Iii. jquery Get the value of radio radio button
The code is as follows: $ ("input[name= ' Items ']:checked"). Val ();
Another: Determine if Radio is selected and gets the selected value
As shown below:
The code is as follows: function Checkradio () {
var item = $ (": radio:checked");
var len=item.length;
if (len>0) {
Alert ("yes--selected value is:" +$ (": radio:checked"). Val ());
}
}
Iv. get a set of values for a radio selected item
The code is as follows: var item = $ (' input[name=items][checked] '). Val ();
V. Set radio button is selected
The code is as follows:
$ ("Input[type=radio]"). attr ("Checked", ' 2 ');//Set the value=2 item as the current selection
Originating From: http://www.jb51.net/article/64141.htm
jquery determines whether radio (radio box) is selected and gets the selected value method summary
