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how to check a radio button based on value

Posted on 2011-09-15
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Last Modified: 2012-08-14
I'm getting a value into a variable like this:

var cur_weight=$('#weight_12').val();

The only possible values are 1, 2 and 3. Radio buttons look like this:

<input type="radio" id="weight1" class="weight" name="weight" value="1">
<input type="radio" id="weight2" class="weight" name="weight" value="2">
<input type="radio" id="weight3" class="weight" name="weight" value="3">

How can I check the right radio button based on the value matching the variable? I was trying this:

$('.weight:radio[value=cur_weight]');

...but does not seem to work. I only want one radio button checked at a time, of course. Thank you!
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Question by:bbdesign
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2 Comments
 
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Accepted Solution

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leakim971 earned 500 total points
ID: 36545230
use : $('.weight:radio[value="' + cur_weight +'"]')

test page : http://jsfiddle.net/dahVc/1/
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Author Comment

by:bbdesign
ID: 36545287
Excellent, that works. Although the full solution would be:

$('.weight:radio[value="'+cur_weight+'"]').attr("checked", true);

Need the attribute checked in addition to the selector, which I was also missing. Thanks!
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