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Jquery Validation dynamic inputs [duplicate]

I have a form on which I am using jquery.validate. I initially call validate with a set of rules and custom messages...
$("#formName").validate( {
rules: {
myExistingInput: {
required: true
}
},
messages: {
myExistingInput: {
required: "Enter something"
}
},
ignore: null, // include hidden fields (see below)
submitHandler: function(form) {
// do stuff
},
invalidHandler: function(event, validator) {
// do stuff (some of the fields may have been hidden by a collapsible panel
// if there is an error on one of those fields, expand the panel so the error
// becomes visible)
}
});
Later, I dynamically add fields to the form, and add rules for those fields too...
$("#formName").append(...);
$("#newInputName").rules("add", {
required: true,
messages: {
required: "Enter something else"
}
});
If I then submit the form, I get an error from within jquery.validate...
Exception occured when checking element newInputName, check the
'messages' method.TypeError: Unable to get property 'call' of
undefined or null reference
Debugging in the browser, I can see the error is being thrown from within the "check" function, and that the "method" variable is set to "messages".
If I remove the messages from the call to rules("add",...
$("#newInputName").rules("add", {
required: true
});
it works as expected, but obviously I now have no custom error messages.
I have seen many examples here on SO indicating that my syntax is correct. Any suggestions?
BTW: jQuery Validation Plugin - v1.11.0 - 2/4/2013

Your code seems to be working, without error, as you posted it.
DEMO with DOM ready: http://jsfiddle.net/UZTnE/
DEMO with PageInit & jQuery Mobile: http://jsfiddle.net/xJ3E2/
$(document).on("pageinit", function () {
$('#myform').validate({ // initialize the plugin
rules: {
field1: {
required: true
}
},
messages: {
field1: {
required: "Enter something"
}
}
});
$('[name*="field"]').each(function () {
$(this).rules('add', {
required: true,
messages: {
required: "Enter something else"
}
});
});
});
HTML:
<form id="myform">
<input type="text" name="field1" />
<input type="text" name="field2" />
<input type="submit" />
</form>
BTW:
this...
ignore: null, // include hidden fields
should be...
ignore: [], // include hidden fields
See: jQuery Validate - Enable validation for hidden fields

$(document).ready(function(){
$("#controlId").rules("add", {
required : true,
messages : { required : 'field is required.' }
});
});

as an answer to this old issue, I do like this to get the meassges inside the rules object.
After you have added the rules you can add messages like this:
var inputRules = $('input').rules();
inputRules.messages = {required: 'your message'};
Good luck!

how to check for HTML tags and then add error in jQuery Validation

I am trying to validate my form using jQuery Validation plugin.
Here is the code
$(document).ready(function(){
var productsForm=$('#products-form');
productsForm.validate({
//debug:true,
invalidHandler: function(event, validator) {
// 'this' refers to the form
var errors = validator.numberOfInvalids();
if (errors) {
var message = errors == 1
? 'You missed 1 field. It has been highlighted'
: 'You missed ' + errors + ' fields. They have been highlighted';
$("div.error span").html(message);
$("div.error").show();
} else {
$("div.error").hide();
}
},
rules:{
productName: {
required: true,
minlength:2,
//here i tried to create a function
onfocusout: function(element){
var myValue=$(element).val();
if(myValue.match(/[<>$]/))
{
alert('Please enter the Name without any tags.');
$(element).valid=false;
}
}
},
productType: {
required: true,
minlength:2,
},
productBrand: {
required: true,
minlength:2,
},
description: {
required: true,
minlength:10,
maxlength:150,
},
updatedBy:{
required:true,
minlength:2,
}
},
messages:{
productName:{
required: "Please enter the productName",
minLength: "The name should be atleast 2 characters long",
},
productType: {
required: "Please enter the productType",
minlength:"The type should be atleast 2 characters long",
},
productBrand: {
required: "Please enter the productBrand",
minlength:"The Brand Name should be atleast 2 characters long",
},
description: {
required: "Please describe your product",
minlength: "The description should be atleast 10 characters long",
maxlength: "You can not enter more than 150 characters",
},
updatedBy:{
required: "PLease Your name",
minlength: "The name should be atleast 2 characters long",
}
},
submitHandler: function(form){
if(productsForm.valid())
{
alert('tada');
return false;
}
else
{
alert('not valid');
return false;
}
}
});
});
Now I am trying to create a function which checks whether the input values contain HTML tags or not. If yes then show the error msg and do not submit the form. But I do not know how to do that. Can anyone help please?
I tried to create a function as onfocusout but do not know how to add error.

Quote Title:
"how to check for HTML tags and then add error in jQuery Validation"
If you're using the jQuery Validate plugin, you only need to specify a rule for a field and the corresponding error message is toggled automatically. There are built-in methods for creating custom rules and built-in methods for over-riding any error text with your custom text. The plugin automatically blocks the form submission during any error including errors triggered from your custom rules.
Quote OP:
"Now I am trying to create a function which checks whether the input
values contain html tags or not. If yes then show the error msg and
do not submit the form."
Your second sentence merely describes what every single validation rule does. Checks the input data and blocks submission on failure of this test. Your first sentence is what you want your rule to do... make sure the input contains no tags.
Quote OP:
"I tried to create a function as onfocusout but do not know how to add error."
Your code attempt indicates that you're making this way way more complicated than it needs to be. You do not need to tinker with any single callback function of the plugin just to create one new rule... at that point you might as well write your own validation plugin from scratch.
To achieve what you want, you simply need to use the addMethod method to write your own custom jQuery Validation rule. In this case, you'll need a regex that will exclude HTML tags... perhaps by only allowing letters and numbers. (Tweak the regex or replace the function with anything you see fit).
Refer to this really basic example:
jQuery.validator.addMethod("noHTML", function(value, element) {
// return true - means the field passed validation
// return false - means the field failed validation and it triggers the error
return this.optional(element) || /^([a-z0-9]+)$/.test(value);
}, "No HTML tags are allowed!");
$('#myform').validate({
rules: {
field1: {
required: true,
noHTML: true
}
}
});
DEMO: http://jsfiddle.net/mM2JF/
However, the additional-methods.js file already includes various rules that would automatically exclude any HTML...
letterswithbasicpunc => "Letters or punctuation only please"
alphanumeric => "Letters, numbers, and underscores only please"
lettersonly => "Letters only please"
$('#myform').validate({
rules: {
field1: {
required: true,
alphanumeric: true // <- will also not allow HTML
}
}
});
DEMO 2: http://jsfiddle.net/mM2JF/1/

Try this Code to Validate the HTML tags
jQuery.validator.addMethod("noHTMLtags", function(value, element){
if(this.optional(element) || /<\/?[^>]+(>|$)/g.test(value)){
return false;
} else {
return true;
}
}, "HTML tags are Not allowed.");
$('#form').validate({
rules: {
message: {
required: true , noHTMLtags: true
}
}});
I Hope this is also a good example.

Here is the exmple of what i hve done
$.validator.addMethod("CHECKDOB", function(value, element) {
return this.optional(element) || check_blank_dob(element);
}, "Please Enter Birth Date");
//See checkdob function is added to validator
Now
In rules
rules:{
<%=txtfirstname.UniqueID %>: {required: true}, <%=txtlastname.UniqueID %>: {required: true},
<%=txtdateofbirth.UniqueID %>: { required: true,
CHECKDOB:"Please Enter Birth Date",//see here i have called that function
date:true
},
now messages
messages: {
<%=txtfirstname.UniqueID %>:{required: "Please Enter First Name"},
<%=txtlastname.UniqueID %>:{required: "Please Enter Last Name"},
<%=txtdateofbirth.UniqueID %>:{
required: "Please Enter Birth Date",
CHECKDOB:"Please Enter Birth Date",
date:"Invalid Date! Please try again"
},
Here is your function
function check_blank_dob()
{
var birth=document.getElementById("<%=txtdateofbirth.ClientID%>").value
if(birth=="__/__/____")
{
return false;
}
return true;
}
See this function i have called at checkdob function when adding method to validator
This is just the example how to add you have to implement your method i hope this will help you regards....:)

I use regular expression for preventing HTML tags in my textarea
$.validator.addMethod(
"no_html",
function(value, element) {
if(/<(.|\n)*?>/g.test( value )){
return false;
}else{
return true;
}
},
"HTML tag is not allow."
);
$('#myform').validate({
rules: {
field1: {
required: true,
no_html: true
}
}
});

jQuery Validation plugin with CKEditor

I know this question has been asked before and I have read all the previous questions and I still can't get the jQuery validator to properly validate CKEditor fields.
My form is below:
<form id="faq-form">
<p>
<label>Title:</label>
<input type="text" id="faq-title" name="faq-title" class="faq-title" />
</p>
<p>
<label for="question">Question:</label>
<textarea name="question" id="question"></textarea>
</p>
<p>
<label for="answer">Answer:</label>
<textarea name="answer" id="answer"></textarea>
</p>
<p>
<input id="submit-faq" name="submit-faq" type="submit" value="Submit" />
</p>
</form>
Both textareas are converted to CKEditor fields using:
<script>
CKEDITOR.replace('question', { toolbar : 'forum' });
CKEDITOR.replace('answer', { toolbar : 'forum' });
</script>
When I try to validate, only the title field gets validated. I am not sure what I am doing wrong. Here is my javascript code for validating (the following sits in a jQuery document ready function).
$('#faq-form').submit(function() {
// Update textareas with ckeditor content
for (var i in CKEDITOR.instances) {
CKEDITOR.instances[i].updateElement();
$.trim($('#' + i).val());
}
// Validate the form
if ( ! $('#faq-form').validate({
rules: {
'faq-title': {
required: true,
minlength: 5
},
answer: {
required: true,
minlength: 20
},
question: {
required: true,
minlength: 20
}
}
}).form()) {
console.log('Form errors');
return false;
}
Once the validation is complete, I will use a $.post method instead of a normal form get or post so I can update my page without reloading. The $.post comes after the validation method but I didn't think it was necessary to show.

I was finally able to get it working. CKEditor hides the textareas when it runs and the jQuery validator ignores hidden elements. In the validate function, this can be changed. So my new code is below:
if ( ! $('#faq-form').validate({
ignore: "input:hidden:not(input:hidden.required)",
rules: {
'faq-title': {
required: true,
minlength: 5
},
answer: {
required: true,
minlength: 20
},
question: {
required: true,
minlength: 20
}
},
messages: {
'faq-title': {
required: "The title field is required"
},
answer: {
required: "The answer field is required"
},
question: {
required: "The question field is required."
}
},
errorElement: "span",
errorPlacement: function (error, element) {
error.appendTo(element.prev());
}
}).form()) {
console.log('Form errors');
return false;
}
I also added messages and modified the element and location of the errors when they are displayed. I figured that might be helpful to anyone else who stumbles across this.

Ok lets cut it down, I have spent hours to get the error message of CKEditor in the right place, because every time it showing up on top of the CKEditor or just after the label which is not look nice.
As CKEditor hides the textarea and put its span tag right after the textarea. Please use browser tool to inspect the dom elements, then you can see the textarea is hidden.
I just adjusted the code to get the error message label/span just under the CKEditor.
$('#messageForm').validate(
{
ignore: 'input:hidden:not(input:hidden.required)',
rules: {
msgTitle: {
minlength: 2,
required: true
},
msgText: {
minlength: 2,
required: true
}
},
errorElement: "span", // can be 'label'
errorPlacement: function (error, element) {
if ($(element).attr('id') == 'msgText') {
$('#cke_msgText').after(error);
} else {
element.after(error);
}
},
highlight: function (element) {
$(element).closest('.form-group').removeClass('text-success').addClass('error');
},
success: function (element) {
element
.closest('.form-group').removeClass('error').addClass('text-success');
}
});
Here, 'msgText' is the id of the textarea which is hidden, and cke_msgText id of the ckeditor, you can find the id by inspecting the dom element, perhaps ckeditor takes the id attribute of textarea and prefix 'cke_' with it.

My guess is that CKEditor doesn't play nicely with validation, at least by default. You'd need to remove the editors before validation (CKEditor works by hiding the thing being edited and then inserting an iframe and sticking the editable content in there; when you remove the editor it shuts down the iframe and copies over the content -- at least that's from memory). My guess is that if you inspect the DOM you'll see that the content of the textareas isn't changing.
You may find NicEdit more useful in this context -- see this thread:
https://stackoverflow.com/questions/3914510/wysiwyg-editor-without-iframe

Your code:
$('#faq-form').submit(function() {
// Update textareas with ckeditor content
for (var i in CKEDITOR.instances) {
CKEDITOR.instances[i].updateElement();
$.trim($('#' + i).val());
}
if ( ! $('#faq-form').validate({
rules: {
'faq-title': {
required: true,
minlength: 5
},
answer: {
required: true,
minlength: 20
},
question: {
required: true,
minlength: 20
}
}
}).form()) {
console.log('Form errors');
return false;
}
....
You should not use .validate() inside a conditional. That's what the .valid() method is for. .validate() is only used for initializing the plugin once on DOM ready with your rules & options. Once initialized, then .valid() can be used inside conditionals to trigger a test and return a boolean.
Also, you should not have .validate() inside of submit handler. The plugin has it's own submitHandler callback function.
Your code should be changed into something like:
$(document).ready(function() {
$('#faq-form').validate({ // initialize the plugin
// rules & options,
rules: {
'faq-title': {
required: true,
minlength: 5
},
answer: {
required: true,
minlength: 20
},
question: {
required: true,
minlength: 20
}
},
submitHandler: function (form) {
// Update textareas with ckeditor content
for (var i in CKEDITOR.instances) {
CKEDITOR.instances[i].updateElement();
$.trim($('#' + i).val());
}
}
})
if ( ! $('#faq-form').valid() ) { // test the form for validity
console.log('Form errors');
return false;
}
});

Best solution I found so far, simple and elegant:
$('#form1').validate({
ignore: [],
rules: {
corpo : {
required: function()
{
CKEDITOR.instances.corpo.updateElement();
}
}
}
})
Font: http://devlog.waltercruz.com/usando-ckeditor-e-jquery-validate-juntos

<form>
<textarea class="ckeditor" id="noticeMessage" name="message"></textarea>
</form>
<script type="text/javascript" src="ckeditor/ckeditor.js"></script>
<form>
<textarea class="ckeditor" id="noticeMessage" name="message"></textarea>
</form>
<script type="text/javascript" src="ckeditor/ckeditor.js"></script>
<script type="text/javascript">
$("form").submit( function() {
var messageLength = CKEDITOR.instances['noticeMessage'].getData().replace(/<[^>]*>/gi, '').length;
if( !messageLength ) {
alert( 'Please enter a message' );
}
}
</script>
see for full reference
----------------------
http://christierney.com/2012/12/14/ckeditor-4-required-field-validation/

How can I detect when jQuery Validation is done, and call something based on that event?

I'm new to jQuery.
Working with jQuery validation plugin & cufon at the same time is giving me really hard time.
Basically, I want to detect event once jQuery Validation did what it had to do and call Cufon.refresh() straight after it.
$('#commentForm').validate({
rules: {
password: {
required: true,
minlength: 8,
maxlength: 8,
number: true
},
}
});
We are expecting <label class="error"> SOME TEXT </label> when form is not valid.
And once that created I want to Cufon.refresh() on that label created by jQuery Validation.
How can I detect when jQuery Validation is done, and call something based on that event?
Any help much appreciated.
Regards,
Piotr

Thanks to #Ariel - if there is a 'success' there has to be a 'not-success' as well, so..
Working code:
$('#commentForm').validate({
rules: {
password: {
required: true,
minlength: 8,
maxlength: 8,
number: true
}
},
showErrors: function(errorMap, errorList) {
this.defaultShowErrors();
Cufon.refresh();
//alert('not valid!')
},
success: function() {
//alert('valid!')
}
});
Thanks again for the idea!

Use the success option:
$('#commentForm').validate({
rules: {
password: {
required: true,
minlength: 8,
maxlength: 8,
number: true
},
}
success: function() { .... }
});
Note that you have an extra comma after the close brace for the password object. This will give an error in IE.

<script src="js/validate/jquery-1.11.1.min.js"></script>
<script src="js/validate/jquery.validate.min.js"></script>
<script src="js/validate/additional-methods.min.js"></script>
<script>
jQuery.validator.setDefaults({
success: "valid"
});
var form = $("#myform");
form.validate({
rules: {
name: {required: true, minlength: 2},
lastname: {required: true, minlength: 2}
}
});
$("#button").click(function() {
if(form.valid() == true ) { // here you check if validation returned true or false
$("body").addClass("loading");
}
})
</script>

submitHandler: { function(){ bla bla }}
This will allow you to execute code upon the completion of the validate. you will need to place a submit form snippet though, since it replaces the default handler.
EDIT:
// specifying a submitHandler prevents the default submit
submitHandler: function() {
alert("submitted!");
},
// set this class to error-labels to indicate valid fields
success: function(label) {
// set as text for IE
label.html(" ").addClass("checked");
}
You can use either to do what you want. submitHandler allows you to stop the submit and execute code instead ( you can possibly use it to perform code BEFORE you submit it ) or success to execute code after the submit.

Put it inside the errorPlacement option.
errorPlacement: function(error, element) {
error.appendTo( element.parent() );
yourCodeHere();
}

$(document).ready(function() {
$('#commentForm').submit(function(){
var validationResponse = $('#commentForm').valid();
if(validationResponse) {
// when true, your logic
} else {
// when false, your logic
return false;
}
});
$("#commentForm" ).validate({
rules: {
"first_name": {
required: true
}
},
messages: {
"first_name": {
required: "First Name can not be empty"
}
}
});
});

How to display jQuery Validation error container only on submit

I am trying to make the Validation plugin work. It works fine for individual fields, but when I try to include the demo code for the error container that contains all of the errors, I have an issue. The problem is that it shows the container with all errors when I am in all fields, but I would like to display the error container only when the user presses the submit button (but still show inline errors beside the control when losing focus).
The problem is the message in the container. When I took off the code as mentioned in the answer below for the container, the container output just displays the number of errors in plain text.
What is the trick to get a list of detailed error messages? What I would like is to display "ERROR" next to the control in error when the user presses the tab button, and to have a summary of everything at the end when he presses submit. Is that possible?
Code with all input from here:
$().ready(function() {
var container = $('div.containererreurtotal');
// validate signup form on keyup and submit
$("#frmEnregistrer").bind("invalid-form.validate", function(e, validator) {
var err = validator.numberOfInvalids();
if (err) {
container.html("THERE ARE "+ err + " ERRORS IN THE FORM")
container.show();
} else {
container.hide();
}
}).validate({
rules: {
nickname_in: {
required: true,
minLength: 4
},
prenom_in: {
required: true,
minLength: 4
},
nom_in: {
required: true,
minLength: 4
},
password_in: {
required: true,
minLength: 4
},
courriel_in: {
required: true,
email: true
},
userdigit: {
required: true
}
},
messages: {
nickname_in: "ERROR",
prenom_in: "ERROR",
nom_in: "ERROR",
password_in: "ERROR",
courriel_in: "ERROR",
userdigit: "ERROR"
}
,errorPlacement: function(error, element){
container.append(error.clone());
error.insertAfter(element);
}
});
});

First your container should be using an ID instead of a class.. (I'm going to assume that ID is 'containererreurtotal')
Then Try this..
$().ready(function() {
$('div#containererreurtotal').hide();
// validate signup form on keyup and submit
$("#frmEnregistrer").validate({
errorLabelContainer: "#containererreurtotal",
wrapper: "p",
errorClass: "error",
rules: {
nickname_in: { required: true, minLength: 4 },
prenom_in: { required: true, minLength: 4 },
nom_in: { required: true, minLength: 4 },
password_in: { required: true, minLength: 4 },
courriel_in: { required: true, email: true },
userdigit: { required: true }
},
messages: {
nickname_in: { required: "Nickname required!", minLength: "Nickname too short!" },
prenom_in: { required: "Prenom required!", minLength: "Prenom too short!" },
nom_in: { required: "Nom required!", minLength: "Nom too short!" },
password_in: { required: "Password required!", minLength: "Password too short!" },
courriel_in: { required: "Courriel required!", email: "Courriel must be an Email" },
userdigit: { required: "UserDigit required!" }
},
invalidHandler: function(form, validator) {
$("#containererreurtotal").show();
},
unhighlight: function(element, errorClass) {
if (this.numberOfInvalids() == 0) {
$("#containererreurtotal").hide();
}
$(element).removeClass(errorClass);
}
});
});
I am assuming here that you want a <p> tag around each of the individual errors. Typically I use a <ul> container for the actual container (instead of the div you used called 'containererreurtotal') and a <li> for each error (this element is specified in the "wrapper" line)
If you specify #containererreurtotal as display: none; in your CSS, then you dont need the first line in the ready function ( $('div#containererreurtotal').hide(); )

You will find the documentation for the meta option in http://docs.jquery.com/Plugins/Validation/validate#toptions
If you want to display the errors beside the inputs AND in a separate error container you will need to override the errorPlacement callback.
From your example:
...
courriel_in: "ERROR",
userdigit: "ERROR"
}
,errorContainer: container
,errorPlacement: function(error, element){
var errorClone = error.clone();
container.append(errorClone);
error.insertAfter(element)
}
// We don't need this options
//,errorLabelContainer: $("ol", container)
//,wrapper: 'li'
//,meta: "validate"
});
...
The error parameter is a jQuery object containing a <label> tag. The element parameter is the input that has failed validation.
Update to comments
With the above code the error container will not clear errors because it contains a cloned copy. It's easy to solve this if jQuery gives a "hide" event, but it doesn't exist. Let's add a hide event!
First we need the AOP plugin
We add an advice for the hide method:
jQuery.aop.before({target: jQuery.fn, method: "hide"},
function(){
this.trigger("hide");
});
We bind the hide event to hide the cloned error:
...
,errorPlacement: function(error, element){
var errorClone = error.clone();
container.append(errorClone);
error.insertAfter(element).bind("hide", function(){
errorClone.hide();
});
}
...
Give it a try

I would remove the errorContainer and then intercept the validation on postback and in there add a container-error manually like this:
$("#frmEnregistrer").bind("invalid-form.validate", function(e, validator) {
var err = validator.numberOfInvalids();
if (err) {
container.html("THERE ARE "+ err + " ERRORS IN THE FORM")
container.show();
} else {
container.hide();
}
}).validate({ ... })

I have a slightly different solution:
jQuery(document).ready(function() {
var submitted = false;
var validator = jQuery("#emailForm").validate({
showErrors: function(errorMap, errorList) {
if (submitted) {
var summary = "";
jQuery.each(errorList, function() {
summary += "<li><label for='"+ this.element.name;
summery += "' class='formError'>" + this.message + "</label></li>"; });
jQuery("#errorMessageHeader").show();
jQuery("#errorMessageHeader").children().after().html(summary);
submitted = false;
}
this.defaultShowErrors();
},
invalidHandler: function(form, validator) { submitted = true; },
onfocusout: function(element) { this.element(element); },
errorClass: "formError",
rules: {
//some validation rules
},
messages: {
//error messages to be displayed
}
});
});

I solved this problem with the following short code:
errorElement: "td",
errorPlacement: function (error, element) {
error.insertAfter(element.parent());
}
My structure is the following:
<table>
<tr>
<td>Name:</td>
<td><input type="text" name="name"></td>
</tr>
</table>
So my errors will now shown directly in a <td> behind my <input>

I don't know if the validation plugin provides an option for this, but you can probably use standard jQuery to achieve what you want. Make sure you're container is initially hidden, by setting the display style to none:
<div id="container" style="display:none;"></div>
Then you can hookup an onsubmit event to the form which will make the container visible as soon as an attempt is made to submit the form:
jQuery('#formId').onsubmit(function() {
// This will be called before the form is submitted
jQuery('#container').show();
});
Hopefully combining that with your existing code should do the trick.