Question

<input id="ctl00_PlaceHolderMain_RadButtonMango_ClientState" name="ctl00_PlaceHolderMain_RadButtonMango_ClientState" type="hidden" value="{"text":"Mango","value":"Mango","checked":true,"target":"","navigateUrl":"","commandName":"","commandArgument":"","autoPostBack":true,"selectedToggleStateIndex":0,"validationGroup":null,"readOnly":false}" autocomplete="off">

在这种情况下，我们怎样才能找到已检查的值

我能够找到所有值但是如何检查

$("#ctl00_PlaceHolderMain_RadButtonTrial_ClientState").attr("value")    

{
  "text": "Trial",
  "value":"Trial",
  "**checked":true**,
  "target":"",
  "navigateUrl":"",
  "commandName":"",
  "commandArgument":"",
  "autoPostBack":true,
  "selectedToggleStateIndex":0,
  "validationGroup":null,
  "readOnly":false}"
}

Answer 1

首先，您需要一个结束标记：

<input></input>

第二，你不能这样做：

value="{"text":"Mango","value":"Mango","checked":true,"target":"","navigateUrl":"","commandName":"","commandArgument":"","autoPostBack":true,"selectedToggleStateIndex":0,"validationGroup":null,"readOnly":false}"

双引号相互冲突。尝试用单引号将它全部包装起来：

value='{"text":"Mango","value":"Mango","checked":true,"target":"","navigateUrl":"","commandName":"","commandArgument":"","autoPostBack":true,"selectedToggleStateIndex":0,"validationGroup":null,"readOnly":false}'

现在要解决实际问题，你需要将value属性中的字符串解析为json，然后获取checked的值：

var parsedJson = JSON.parse($("#ctl00_PlaceHolderMain_RadButtonMango_ClientState").attr('value'));

document.write(parsedJson.checked);

JQuery在输入元素中嵌套了值。需要找到具体的

1 个答案: