如果你想从你的模型中传递一个值，并且想要根据值从加载组中选择一个单选按钮，那么使用:

Jquery:

var priority = Model.Priority; //coming for razor model in this case
var allInputIds = "#slider-vertical-" + itemIndex + " fieldset input";

$(allInputIds).val([priority]); //Select at start up

和html:

<div id="@("slider-vertical-"+Model.Id)">
 <fieldset data-role="controlgroup" data-type="horizontal" data-mini="true">
    <input type="radio" name="@("radio-choice-b-"+Model.Id)" id="@("high-"+Model.Id)" value="1" checked="checked">
    <label for="@("high-"+Model.Id)" style="width:100px">@UIStrings.PriorityHighText</label>

    <input type="radio" name="@("radio-choice-b-"+Model.Id)" id="@("medium-"+Model.Id)" value="2">
    <label for="@("medium-"+Model.Id)" style="width:100px">@UIStrings.PriorityMediumText</label>

    <input type="radio" name="@("radio-choice-b-"+Model.Id)" id="@("low-"+Model.Id)" value="3">
    <label for="@("low-"+Model.Id)" style="width:100px">@UIStrings.PriorityLowText</label>
 </fieldset>
</div>

这适用于多个单选按钮

$('input:radio[name="Aspirant.Gender"][value='+jsonData.Gender+']').prop('checked', true);

这将导致form.reset()失败:

$('input:radio[name=gender][value=Male]').attr('checked', true);

但这条可行:

$('input:radio[name=gender][value=Male]').click();

当获取无线电输入值时，请注意以下行为:

$('input[name="myRadio"]').change(function(e) { // Select the radio input group

    // This returns the value of the checked radio button
    // which triggered the event.
    console.log( $(this).val() ); 

    // but this will return the first radio button's value,
    // regardless of checked state of the radio group.
    console.log( $('input[name="myRadio"]').val() ); 

});

因此$('input[name="myRadio"]').val()不返回单选输入的检查值，正如您所期望的那样——它返回第一个单选按钮的值。

例如，你有这样的单选按钮:

    <input type='radio' name='gender' value='Male'>
    <input type='radio' name='gender' value='Female'>

你想检查一个值为“Male”的onload，如果没有检查无线电:

    $(function() {
        var $radios = $('input:radio[name=gender]');
        if($radios.is(':checked') === false) {
            $radios.filter('[value=Male]').prop('checked', true);
        }
    });

 $("form input:[name=gender]").filter('[value=Male]').attr('checked', true);