jQuery jQuery选择表单单选按钮
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jQuery selecting a forms radio buttons
提问by ilyo
I have a form and I use this document.forms["form-0"].answerN[0];to select a specific radio button, however I could not manage to do it with jQuery.
我有一个表单，我用它document.forms["form-0"].answerN[0];来选择一个特定的单选按钮，但是我无法用 jQuery 来做到这一点。
I tried $('forms["form-0"]')and $('forms[0]')to get to the form but it didn't work, and both do work using the long path..
我试着$('forms["form-0"]')和$('forms[0]')去的形式，但它没有工作，以及使用长路径都做的工作..
回答by diEcho
回答by intellidiot
回答by sushil bharwani
form-0 is the name of the form. You have to write something like
form-0 是表单的名称。你必须写一些类似的东西
$('form[name=form-0]') to select the form.
to get the radio button you will have to move further to use children
要获得单选按钮，您必须进一步移动才能使用儿童
so
所以
$('form[name=form-0]').children('radio[name=answerN]:first-child')
hopefully this should work
希望这应该有效
回答by Sarah West
If you have a form like this:
如果你有这样的表格：
<form action="" method="post" id="myForm">
<input type="radio" name="myRadioButton" value="0" class="radio" id="firstRadioButton" /> Value
</form>
you can select elements by their id:
您可以通过它们的 id 选择元素：
selects the radio button
选择单选按钮
$("#firstRadioButton)
selects the form
选择表格
$("#myForm")
Or select all radio buttons:
或选择所有单选按钮：
$("#myForm input.radio").each(function(){
alert($(this).val());
});
And without using IDs:
并且不使用 ID：
HTML:
HTML：
<form action="" method="post">
<input type="radio" value="1" /> Value 1 <br />
<input type="radio" value="2" /> Value 2 <br />
</form>
jQuery:
jQuery：
alert($("form").first().find("input:radio").first().val());
Example: Look here
例子：看这里
回答by Ben
You can try this to reach all the forms in your page:
您可以尝试使用此方法访问页面中的所有表单：
$('forms').each(function(id){
console.log(id,$(this));
});
