从隐藏字段中获取价值 jQuery 不起作用
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Get Value from Hidden Field jQuery not working
提问by Suave Nti
Struck with a simple issue of hidden field like this:
遇到一个简单的隐藏字段问题，如下所示：
<input id="hid" type="hidden" name="hid" runat="server"/>
trying to retrieve like this
试图像这样检索
var rid = $("#hid").val();
alert(rid);
But still am getting undefined value in the alert. Browser used : chrome
但仍然在警报中获得未定义的值。使用的浏览器：chrome
采纳答案by Pavan
Its working for me. Here is the JSFiddle. http://jsfiddle.net/P5r9N/
它为我工作。这是 JSFiddle。http://jsfiddle.net/P5r9N/
HTML
HTML
<input id="hid" type="hidden" name="hid" runat="server" value="working"/>
jQuery
jQuery
var rid = $("#hid").val();
alert(rid);
回答by Connie
I had the same problem then realized I didn't have the idattribute of the hidden field set. After I added the field id, this worked fine
我遇到了同样的问题，然后意识到我没有id设置隐藏字段的属性。添加字段后id，这工作正常
alert($('#fieldid').val());
回答by Siva Shibhi
user978064 is correct. However, this is an alternative solution. I had this same issue and somewhat the HTML hidden control does show empty value. I know this is weird!
user978064 是正确的。但是，这是一种替代解决方案。我遇到了同样的问题，并且 HTML 隐藏控件确实显示了空值。我知道这很奇怪！
<input type="hidden" id="hid101" value="c5956aeb-96f3-4073-b130-62c8c7fbaca2">
jQuery("#hid101").val();- This returns empty value
jQuery("#hid101").val();- 这将返回空值
<input type="text" style="visibility:hidden" id="txt101" value="c5956aeb-96f3-4073-b130-62c8c7fbaca2">
jQuery("#txt101").val();- This returns expected value "c5956aeb-96f3-4073-b130-62c8c7fbaca2"
jQuery("#txt101").val();- 这将返回预期值“c5956aeb-96f3-4073-b130-62c8c7fbaca2”
This may help to someone!
这可能对某人有所帮助！
回答by vyshak
Try this it will work
试试这个它会工作
// By `ID`
alert($('input#hid').val());
// By `Name`
alert($('input[name=hid]').val());
// By `Type`
alert($('input[type=hidden]').val());
回答by user978064
Declare style="display:hidden"on the input type="text".
声明style="display:hidden"上input type="text"。
The same thing happen to me just now.
同样的事情刚刚发生在我身上。
回答by Mat41
This post was very helpful to me. For others who it also helps use type="text" style="display:none;" instead of
这篇文章对我很有帮助。对于其他也有帮助的人，请使用 type="text" style="display:none;" 代替
