jquery validate radio code example
Example 1: jQuery check a radio button
// jQuery version 1.6 or above use:
$("#myRadioID").prop("checked", true);
//jQuery versions below 1.6 use:
$("#myRadioID").attr('checked', 'checked');
Example 2: how to validate the radio button using jquery
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if ($("input[name='Gender']:checked").length == 0)