我创建了以下表单:http: //jsfiddle.net/baumdexterous/GYNSu/1/
我实现了一个适用于许多表单元素的验证脚本,但由于某种原因它不适用于单选按钮,因此目前用户可以在不选择所需单选按钮之一的情况下提交表单。
如何使用此现有脚本启用对单选按钮的验证?非常感谢。
<ul>
<li class="required">
<label>What is the U.S. Capital? Please select your answer below:</label>
<div class="questionsone">
<input name="questionone" type="radio" value="a">a) New York<br>
<input name="questionone" type="radio" value="b">b) Washington DC<br>
<input name="questionone" type="radio" value="c">c) Seattle<br>
<input name="questionone" type="radio" value="d">d) Portland<br>
</div>
</li>
</ul>
更新:我有这个与现有验证一起工作的 JavaScript 部分。试图弄清楚如何添加一种检测单选按钮的方法:
<script>
$(function() {
var root = $("#wizard").scrollable();
// some variables that we need
var api = root.scrollable(),
drawer = $("#drawer");
// validation logic is done inside the onBeforeSeek callback
api.onBeforeSeek(function(event, i) {
// we are going 1 step backwards so no need for validation
if (api.getIndex() < i) {
// 1. get current page
var page = root.find(".page").eq(api.getIndex()),
// 2. .. and all required fields inside the page
inputs = page.find(".required :input").removeClass("error"),
// 3. .. which are empty
empty = inputs.filter(function() {
return $(this).val().replace(/\s*/g, '') == '';
});
// if there are empty fields, then
if (empty.length) {
// slide down the drawer
drawer.slideDown(function() {
// colored flash effect
drawer.css("backgroundColor", "#229");
setTimeout(function() {
drawer.css("backgroundColor", "#fff");
}, 1000);
});
// add a CSS class name "error" for empty & required fields
empty.addClass("error");
// cancel seeking of the scrollable by returning false
return false;
// everything is good
} else {
// hide the drawer
drawer.slideUp();
}
}
// update status bar
$("#status li").removeClass("active").eq(i).addClass("active");
});
// if tab is pressed on the next button seek to next page
root.find("button.next").keydown(function(e) {
if (e.keyCode == 9) {
// seeks to next tab by executing our validation routine
api.next();
e.preventDefault();
}
});
});
</script>