选中单选按钮后，将检查下一个单选按钮

Question

所以，我有一个非常简单的添加和删除图片集。他们目前有单选按钮，让用户选择哪个是默认图片。这是一个简单的html：

<table>
    <tr>
        <td class="vatop aleft">
            <table>                                            
                <tr>
                    <td><div id="pic1" class="picture" ><span>1</span></div></td>
                    <td><div id="pic2" class="picture" ><span>2</span></div></td>
                    <td><div id="pic3" class="picture" ><span>3</span></div></td>
                    <td><div id="pic4" class="picture" ><span>4</span></div></td>
                    <td><div id="pic5" class="picture" ><span>5</span></div></td>
                </tr>
                <tr>
                    <!--JDO 12.12.2013 CWA-9448 -->
                    <td class="acenter"><input id="default1" type="radio" name="defaultpic" class="defaultpic" picnumber="1" /><span><!--This is where default text go--></span></td>
                    <td class="acenter"><input id="default2" type="radio" name="defaultpic" class="defaultpic" picnumber="2" disabled="disabled" /><span><!--This is where default text go--></span></td>
                    <td class="acenter"><input id="default3" type="radio" name="defaultpic" class="defaultpic" picnumber="3" disabled="disabled" /><span><!--This is where default text go--></span></td>
                    <td class="acenter"><input id="default4" type="radio" name="defaultpic" class="defaultpic" picnumber="4" disabled="disabled" /><span><!--This is where default text go--></span></td>
                    <td class="acenter"><input id="default5" type="radio" name="defaultpic" class="defaultpic" picnumber="5" disabled="disabled" /><span><!--This is where default text go--></span></td>
             <!--END-->
                       </tr>
                <tr>
                    <td class="aleft vabottom" colspan="5" style="padding-top: 15px;" >
                        <form id="uploadform" name="uploadForm" method="post" enctype="multipart/form-data" action="FileTransferHandler.ashx" target="pictureframe">
                            <input id="filepicture" name="filepicture" type="file" class="file" style="margin-right: 5px; width: 450px;" />
                            <select id="picturenumber" class="" style="margin-right: 5px; width: 80px;"></select>
                            <input id="uploadpicture" type="submit" value="{{UIT.[147743]}}" class="link" />
                            <a id="deletepicture" href="javascript:void(0)" rel="deletepicture" class="link" >{{UIT.[8397]}}</a>
                        </form>
                        <iframe id="pictureframe" name="pictureframe" src="about:blank" class="hidden"></iframe>
                    </td>
                </tr>
            </table>
        </td>
    </tr>
</table> 

现在有了这个我有删除默认图像的问题。例如，我将上传三张图片并选择第二张图片作为默认图片然后删除该图片，图片被删除但是当我的代码选择下一张默认图片（这是第一张图片，因为它有图片）时，它被选中但没有检查单选按钮。请参阅我的代码段以获取删除：

var $deletepicture = $("#main-template #deletepicture");
$deletepicture.click(function () {
   $("#main-template #picturenumber option:selected").each(function () {
     _picnum = $(this).attr("code");
     //Remove the image, show the span, reset the filename attribute of the div
     $("#pic" + _picnum.toString() + " img").remove();
     $("#pic" + _picnum.toString()).find("span").show();
     $("#pic" + _picnum.toString()).removeAttr("filename");
     $("#pic" + _picnum.toString()).hide().show();
     //Choose another default
     $("#default" + _picnum.toString()).removeAttr('checked');
     $("#default" + _picnum.toString()).next().text('');
     $("#default" + _picnum.toString()).prop('disabled', true);
     for (var i = 1; i < 6; i++) {
       var $div = $("#pic" + i.toString());
       if ($div.attr("filename") !== undefined) {

         $("#default" + i.toString()).attr('checked', 'checked');
         $("#default" + i.toString()).next().text(' Default');
         //JDO 12.12.2013 CWA-9437
         return false;
       }
   };
 });
});

我可以看到“默认”从第二张图片移动到第一张图片，但我很难让收看广播框。

Answer 1

从jQuery 1.9开始，要激活单选按钮，请使用：

$("#default" + i.toString()).prop("checked", true);

而不是

$("#default" + i.toString()).attr('checked', 'checked');