Calling onclick on a radiobutton list using javascript

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 7  2099

灰色年华

How do I call onclick on a radiobutton list using javascript?

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7条回答

天命终不由人

2020-12-01 13:58
The other answers did not work for me, so I checked Telerik's official documentation it says you need to find the button and call the click() function:
```
function KeyPressed(sender, eventArgs) {
            var button = $find("<%= RadButton1.ClientID %>");
            button.click();
        }
```
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南笙

2020-12-01 14:01

try following solution

HTML:

<div id="variant">
<label><input type="radio" name="toggle" class="radio" value="19,99€"><span>A</span></label>
<label><input type="radio" name="toggle" class="radio" value="<<<"><span>B</span></label>
<label><input type="radio" name="toggle" class="radio" value="xxx"><span>C</span></label>
<p id="price"></p>

JS:

$(document).ready(function () {
       $('.radio').click(function () {
           document.getElementById('price').innerHTML = $(this).val();
       });

   });

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栀梦

2020-12-01 14:02
To trigger the onClick event on a radio-button invoke the click() method on the DOM element:
```
document.getElementById("radioButton").click()
```
using jquery:
```
$("#radioButton").click()
```
AngularJs:
```
angular.element('#radioButton').trigger('click')
```
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长发绾君心

2020-12-01 14:02

The problem here is that the rendering of a RadioButtonList wraps the individual radio buttons (ListItems) in span tags and even when you assign a client-side event handler to the list item directly using Attributes it assigns the event to the span. Assigning the event to the RadioButtonList assigns it to the table it renders in.

The trick here is to add the ListItems on the aspx page and not from the code behind. You can then assign the JavaScript function to the onClick property. This blog post; attaching client-side event handler to radio button list by Juri Strumpflohner explains it all.

This only works if you know the ListItems in advance and does not help where the items in the RadioButtonList need to be dynamically added using the code behind.

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耶瑟儿～

2020-12-01 14:12
How are you generating the radio button list? If you're just using HTML:
```
<input type="radio" onclick="alert('hello');"/>
```
If you're generating these via something like ASP.NET, you can add that as an attribute to each element in the list. You can run this after you populate your list, or inline it if you build up your list one-by-one:
```
foreach(ListItem RadioButton in RadioButtons){
    RadioButton.Attributes.Add("onclick", "alert('hello');");
}
```
More info: http://www.w3schools.com/jsref/event_onclick.asp
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南旧

2020-12-01 14:17

I agree with @annakata that this question needs some more clarification, but here is a very, very basic example of how to setup an onclick event handler for the radio buttons:

<html>
 <head>
  <script type="text/javascript">
    window.onload = function() {

        var ex1 = document.getElementById('example1');
        var ex2 = document.getElementById('example2');
        var ex3 = document.getElementById('example3');

        ex1.onclick = handler;
        ex2.onclick = handler;
        ex3.onclick = handler;

    }

    function handler() {
        alert('clicked');
    }
  </script>
 </head>
 <body>
  <input type="radio" name="example1" id="example1" value="Example 1" />
  <label for="example1">Example 1</label>
  <input type="radio" name="example2" id="example2" value="Example 2" />
  <label for="example1">Example 2</label>
  <input type="radio" name="example3" id="example3" value="Example 3" />
  <label for="example1">Example 3</label>
 </body>
</html>

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