javascript 使用 form.serialize 获取正确的复选框值
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Get proper checkbox value using form.serialize
提问by Theun Arbeider
We are currently using $('form').serialize()
to get all form information
我们目前正在使用$('form').serialize()
获取所有表单信息
This will return any checkbox values as "On" or "Off".
这将返回任何复选框值作为“开”或“关”。
Is there any way to get a 1/0 or true/false value using this same method?
有没有办法使用相同的方法获得 1/0 或 true/false 值?
回答by Konstantin Rudy
Yes. You can do it by adding a hidden input with the same name as checkbox which value will be submitted if checkbox is unchecked:
是的。您可以通过添加与复选框同名的隐藏输入来实现,如果未选中复选框,将提交该值:
<input type="hidden" name="option" value="false"/>
<input type="checkbox" name="option" value="true"/>
It will submit both values if checkbox is checked. But server side will read the latest one (value of checkbox)
如果复选框被选中,它将提交两个值。但是服务器端会读取最新的(复选框的值)
回答by RobG
The value of a form control is always a string. You can use radio buttons to get different values for the same control name:
表单控件的值始终是字符串。您可以使用单选按钮为相同的控件名称获取不同的值:
<form ...>
<input type="radio" name="whatever" value="true">true
<br>
<input type="radio" name="whatever" value="false">false
...
</form>
Only one can be checked, and only the checked name/value will be sent to the server.
只能勾选一项,只有勾选的名称/值才会发送到服务器。
回答by Rajdeep
If we have multiple checkboxed in our page like :
如果我们的页面中有多个复选框,例如:
<input id="reminder" name="Check1" value="false" type="checkbox" />
<input id="alarm" name="Check2" value="false" type="checkbox" />
we have to bind the change event of these checkboxes and set its value to true or false.
我们必须绑定这些复选框的更改事件并将其值设置为 true 或 false。
$('input[type=checkbox]').on('change', function(){
var name = $(this).attr('name');
if($(this).is(':checked')){
$('input[name= "' +name +'"]').val(true);
$(this).val(true);
}
else{
$(this).val(false);
$('input[name= "' +name +'"]').val(false);
}
});
By default, checkbox value doesn't appear in $('form').serializeArray(), It appears when it is checked.
默认情况下,复选框值不会出现在 $('form').serializeArray() 中,它在被选中时出现。
We have to keep one hidden field for each checkbox like :
我们必须为每个复选框保留一个隐藏字段,例如:
<input type="hidden" value="false" name="Check1" />
<input type="hidden" value="false" name="Check2" />
Now when we serialize the form now, we get the correct value like : Check1=true Check2=false
现在,当我们现在序列化表单时,我们会得到正确的值,例如: Check1=true Check2=false
回答by Petro Franko
You can add a new class for check boxes and set value when clicked.
您可以为复选框添加一个新类并在单击时设置值。
<input class="checkbox" id="someId" type="checkbox" value="false" />Checkbox
And use a small JQuery helper
并使用一个小的 JQuery 助手
$('.checkbox').click(function () {
$(this).val() == "false" ? $(this).val("true") : $(this).val("false");
});
Then you will be able to get the value of the check box or serialize a form.
然后您将能够获取复选框的值或序列化表单。
回答by Rana
<input type="checkbox" name="check1" value="true" id="check1">
just set the value
只需设置值