javascript – 如何使用jQuery验证插件检查特定字段是否有效？
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参见英文答案 > jQuery Validation plugin: how to check if an element is valid? 2个
我试图在按钮点击事件上检查特定表单字段是否有效但不起作用.
我已经包含了这个jQuery库：
<script type='text/javascript' src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.8/jquery.validate.min.js"></script>
和jQuery代码：
<script type='text/javascript'>//<![CDATA[
$(window).load(function(){
$(function () {
//The client side validations
var validator = $("#form").validate({
rules: {
brokercat: {
required: true
}
},
messages: {
brokercat: {
required: "required"
}
},
});
});
$(".next").click(function () {
alert($("#brokercat").valid());
});
});
</script>
HTML代码：
<form name="form" id="form" action="#">
<div class="radio">
<input name="brokercat" id="radiobtn" type="radio" name="radio" value="cat05">
<label for="radiobtn">
<p>My business would benefit from having more cash available.</p>
</label>
<input name="brokercat" id="radiobtn1" type="radio" name="radio" value="cat04">
<label for="radiobtn1">
<p>My business needs to buy a new piece of equipment.</p>
</label>
<input name="brokercat" id="radiobtn2" type="radio" name="radio" value="cat02">
<label for="radiobtn2">
<p>My business wants to buy the property that it already
<br/>occupies or is looking to move into. Or, I am looking to buy
<br/>a business and that includes the premises it occupies.</p>
</label>
<input name="brokercat" id="radiobtn3" type="radio" name="radio" value="cat06">
<label for="radiobtn3">
<p>I need to acquire a new vehicle for my business.</p>
</label>
<input name="brokercat" id="radiobtn4" type="radio" name="radio" value="cat07">
<label for="radiobtn4">
<p>I am looking to develop residential or commercial premises.</p>
</label>
<input name="brokercat" id="radiobtn5" type="radio" name="radio" value="cat08">
<label for="radiobtn5">
<p>I need to borrow for less than 12 months for a property transaction.</p>
</label>
<input name="brokercat" id="radiobtn6" type="radio" name="radio" value="cat03">
<label for="radiobtn6">
<p>I have outstanding invoices that I would like to use to raise
<br/>some extra funding.</p>
</label>
<input name="brokercat" id="radiobtn7" type="radio" name="radio" value="cat09">
<label for="radiobtn7">
<p>I/we have a pension fund that we would like to consider
<br/>using to raise some capital.</p>
</label>
<input name="brokercat" id="radiobtn8" type="radio" name="radio" value="cat01">
<label for="radiobtn8">
<p>I am looking to buy a property as an investment and to rent
<br/>it out.</p>
</label>
<input name="brokercat" id="radiobtn9" type="radio" name="radio" value="cat10">
<label for="radiobtn9">
<p>My business is looking to help with its overseas trading and
<br/>exporting.</p>
</label>
<input type="button" class="next" value="Next" />
</div>
</form>
我收到此错误：
知道为什么它不起作用.
谢谢.
解决方法:
您的代码中没有ID为brokercat的元素,#drkercat是基于ID的选择器.它是name属性.
使用
$("[name='brokercat']").valid() //returns 0 or 1
$(".next").click(function () {
alert($("[name='brokercat']").valid());
});
*注意：确保包含兼容的jQuery和jQuery.validate.js引用.
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