JQuery Validate individual fieldsets
I've developed a form with multiple fieldsets to represent steps in filling out the complete form. The fieldsets are shown and hidden by button click (one on each fieldset) but I want to validate each fieldset before the next is shown.
I'm new to JQuery and I'm having a bit of trouble. I found this guide ( http://encosia.com/2009/11/24/asp-net-webforms-validation-groups-with-jquery-validation/) that allows me to validate different fieldsets independently but my problem is how do I use that validation to control the showing and hiding of the relevent fieldsets.
I thought the way to do this would be to 开发者_如何学运维create a function from each click event for the buttons but I can't seem to call the validate function correctly.
I'm afraid I'm completely confused now! Help!!
I stumbled across this example just before finding your question while googling something else, hoping this will help someone with the same problem:
https://djaodjin.com/blog/jquery-multi-step-validation.blog.html
Basically, apparently validation.js only validates the visible fields by default.
Here's the full example code, click through to the link to see the explanation:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<title>Multiple step form</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">
<script type="text/javascript" src="js/jquery-1.9.0.js"></script>
<script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.13.1/jquery.validate.js"></script>
<script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.13.1/additional-methods.js"></script>
<style type="text/css">
#personal_information,
#company_information{
display:none;
}
</style>
</head>
<body>
<div class="container">
<div class="col-lg-5">
<form class="form-horizontal" action="" method="POST" id="myform">
<fieldset id="account_information" class="">
<legend>Account information</legend>
<div class="form-group">
<label for="username" class="col-lg-4 control-label">Username</label>
<div class="col-lg-8">
<input type="text" class="form-control" id="username" name="username" placeholder="username">
</div>
</div>
<div class="form-group">
<label for="password" class="col-lg-4 control-label">Password</label>
<div class="col-lg-8">
<input type="password" class="form-control" id="password" name="password" placeholder="Password">
</div>
</div>
<div class="form-group">
<label for="conf_password" class="col-lg-4 control-label">Confirm password</label>
<div class="col-lg-8">
<input type="password" class="form-control" id="conf_password" name="conf_password" placeholder="Password">
</div>
</div>
<p><a class="btn btn-primary next">next</a></p>
</fieldset>
<fieldset id="company_information" class="">
<legend>Account information</legend>
<div class="form-group">
<label for="company" class="col-lg-4 control-label">Company</label>
<div class="col-lg-8">
<input type="text" class="form-control" id="company" name="company" placeholder="Company">
</div>
</div>
<div class="form-group">
<label for="url" class="col-lg-4 control-label">Website url</label>
<div class="col-lg-8">
<input type="text" class="form-control" id="url" name="url" placeholder="Website url">
</div>
</div>
<p><a class="btn btn-primary next">next</a></p>
</fieldset>
<fieldset id="personal_information" class="">
<legend>Personal information</legend>
<div class="form-group">
<label for="name" class="col-lg-4 control-label">Name</label>
<div class="col-lg-8">
<input type="text" class="form-control" id="name" name="name" placeholder="Name">
</div>
</div>
<div class="form-group">
<label for="email" class="col-lg-4 control-label">Email</label>
<div class="col-lg-8">
<input type="email" class="form-control" id="email" name="email" placeholder="Email">
</div>
</div>
<p><a class="btn btn-primary" id="previous" >Previous</a></p>
<p><input class="btn btn-success" type="submit" value="submit"></p>
</fieldset>
</form>
</div>
</div>
<script type="text/javascript">
$(document).ready(function(){
// Custom method to validate username
$.validator.addMethod("usernameRegex", function(value, element) {
return this.optional(element) || /^[a-zA-Z0-9]*$/i.test(value);
}, "Username must contain only letters, numbers");
$(".next").click(function(){
var form = $("#myform");
form.validate({
errorElement: 'span',
errorClass: 'help-block',
highlight: function(element, errorClass, validClass) {
$(element).closest('.form-group').addClass("has-error");
},
unhighlight: function(element, errorClass, validClass) {
$(element).closest('.form-group').removeClass("has-error");
},
rules: {
username: {
required: true,
usernameRegex: true,
minlength: 6,
},
password : {
required: true,
},
conf_password : {
required: true,
equalTo: '#password',
},
company:{
required: true,
},
url:{
required: true,
},
name: {
required: true,
minlength: 3,
},
email: {
required: true,
minlength: 3,
},
},
messages: {
username: {
required: "Username required",
},
password : {
required: "Password required",
},
conf_password : {
required: "Password required",
equalTo: "Password don't match",
},
name: {
required: "Name required",
},
email: {
required: "Email required",
},
}
});
if (form.valid() === true){
if ($('#account_information').is(":visible")){
current_fs = $('#account_information');
next_fs = $('#company_information');
}else if($('#company_information').is(":visible")){
current_fs = $('#company_information');
next_fs = $('#personal_information');
}
next_fs.show();
current_fs.hide();
}
});
$('#previous').click(function(){
if($('#company_information').is(":visible")){
current_fs = $('#company_information');
next_fs = $('#account_information');
}else if ($('#personal_information').is(":visible")){
current_fs = $('#personal_information');
next_fs = $('#company_information');
}
next_fs.show();
current_fs.hide();
});
});
</script>
</body>
</html>
You can write a custom validation function for each fieldset and call it using the .keyup function. Here is an example:
HTML:
<div id="fieldset1">
<input type="text" name="fname" id="fname">
</div>
<div id="fieldset2">
<!--hidden using css-->
<input type="text" name="fname" id="fname">
</div>
Javascript:
$('#fieldset1 #fname').keyup(function () {
// Runs every time your keystroke is released on this input
if($(this).val() == 'Adam') {
// Checks to see if the field's value is Adam. If it is, then it shows the next fieldset. Otherwise it hides it.
$('#fieldset2').show();
} else {
$('#fieldset2').hide();
}
}
This is obviously meant as a very simple example, but it illustrates what you will need to do in order to validate your form and modify the DOM based on user input.
Using jQuery validation plugin you can get around this by having multiple forms in the same page. You can then call:
$('#myFormId').validate()
on the forms of interest one at the time.
加载中,请稍侯......
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