I have a dropdownlist
$.validator.addMethod("ddlNames", function (value) {
if ($("#NameList.val()=="-1")
{
return false;
}
else
{
return true;
}
}, "Please select a valid Name");
This validation is going fine. But when i change the dropdown value (valid selection ) the error message occured previously its stil displayed. Please can any one help me out?
thanks
You need to call the validation programmatically when changing the drop down.
Eg. If you have: YOUR_FORM validation. Assign a variable to the validate method.
And then call that with .form() on the change event of your dropdown.
Documentation: http://jqueryvalidation.org/Validator.form/
Sample code:
$('#ddlNames').change(function() {
form_validator.form();
});
var form_validator = $("#YOUR_FORM").validate({
ignore: "",
rules: {
firstname: {
required: true,
minlength: 2
},
...
In document.ready you need to add another line that says (replace: # < targetform> with your form):
$('#<targetform>').validate({
rules : {
names : { ddlNames: true }
}
});
Make sure you have a class="required" on your <select>
You should not need to clear them yourself, but there are ways...:
$("#NameList").removeClass("error").addClass("valid");
or
$.validator.resetForm();
That will make sure you start off valid each time.
Related
I am currently working on jQuery validation; the current code I have was working fine, I am getting the number of error count. But I am not getting when the user enter the value in the corresponding field the error count has to detect one by one.
For example if I have 5 fields are not entered by the user it should say You have missed 5 fields. Please fill before submitted when all fields are entered the error field has to disable. And I need to highlight the label of the radio input when nothing is selected. Moreover I am trying to change my mandatory star from black to red. That is also not happening.
Here is my jQuery code.
$(document).ready(function () {
$("#basicForm").validate({
invalidHandler: function(event, validator) {
var errors = validator.numberOfInvalids();
if (errors) {
var message = errors == 1
? 'You missed 1 field. It has been highlighted'
: 'You have missed ' + errors + ' fields. Please fill before submitted.';
$("#error_message").html(message);
$(".error_msge").show();
$("div.error").show();
$("#error_message").addClass("error_msge");
} else {
$("div.error").hide();
$("#error_message").removeClass("error_msge");
}
},
errorPlacement: function(error, element) {
},
onkeyup: false,
highlight: function(element) {
$(element).addClass('errRed');
$(element).addClass('text-error-red');
},
unhighlight: function(element) {
$(element).removeClass('errRed');
$(element).removeClass('text-error-red');
},
rules: {
txt_Fname: "required",
txt_lname: "required",
txt_Mfname: "required",
txt_Mlname: "required",
txt_Pptnum: "required",
txt_Pi: "required",
txt_dob: "required",
txt_Idt:"required",
txt_Epdt:"required",
sel_ms:"required",
ipt_nation:"required",
ipt_countryres:"required",
sel_rg:"required",
sel_sem:"required",
ipt_acdem:"required",
gender:"required"
}
});
});
Here is the Fiddle link.
You have lots of issues and I strongly recommend that you review the documentation.
But I am not getting when the user enter the value in the corresponding field the error count has to detect one by one for example If I have 5 fields are not entered by the user it should say You have missed 5 fields.
You have used the wrong option. The invalidHandler only fires on an invalid form, so when there are zero errors your function will never be called and it will be stuck on show "1 error". Use the showErrors option instead.
showErrors: function (errorMap, errorList) {
var errors = this.numberOfInvalids();
if (errors) {
var message = errors == 1 ? 'You missed 1 field. It has been highlighted' : 'You have missed ' + errors + ' fields. Please fill before submitted.';
$("#error_message").html(message);
$(".error_msge").show();
//$("div.error").show(); // superfluous
//$("#error_message").addClass("error_msge"); // superfluous
} else {
$(".error_msge").hide();
//$("div.error").hide(); // superfluous
//$("#error_message").removeClass("error_msge"); // superfluous
}
// ensures that highlight/unhighlight will function
this.defaultShowErrors();
},
Please fill before submitted. when all fields are entered the error field has to disable.
You forgot to hide the error message box when there are no errors: $(".error_msge").hide() was missing
And I need to highlight the label of the radio input when nothing is selected.
You need a conditional inside the highlight and unhighlight functions that will take care of this when the element is a radio.
highlight: function (element) {
if ($(element).is(':radio')) {
$(element).siblings('label').addClass('errRed');
} else {
$(element).addClass('errRed');
}
$(element).prev('span.required-star').addClass('text-error-red').removeClass('text-error-black');
},
unhighlight: function (element) {
if ($(element).is(':radio')) {
$(element).siblings('label').removeClass('errRed');
} else {
$(element).removeClass('errRed');
}
$(element).prev('span.required-star').addClass('text-error-black').removeClass('text-error-red');
}
I also moved the code for the asterisks in here since you want them to toggle color individually.
More over I am trying to change my mandatory star from black to red.
Your CSS technique is flawed. You are trying to select everything with the "black" class and simply add a "red" class, leaving you with two classes each with a different color. Instead, you need to replace one class with the other class. Something like this...
$(".required-star").removeClass("text-error-red").addClass("text-error-black");
You need to programmatically trigger validation using the .valid() method when you use the date-picker...
$('.ipt_Field').on('change', function() {
$("#basicForm").valid();
});
You do not need the messages option. Since you are suppressing all of the messages, it's pointless.
Also do not leave the errorPlacement function empty. Put a return false inside.
errorPlacement: function() {
return false; // suppress error messages.
}
DEMO: http://jsfiddle.net/k5wxtmpL/
I would like to add custom error replacement using jquery validation plugin (http://jqueryvalidation.org/documentation/) I would like to do custom error replacement like click here
$(function() {
//simple example 1
//click event for first button
$("#form1").validate({
errorPlacement: function(error, element) {
if (element.attr("name") == "business_email" ) {
$("#bus_email").css('color',"#f42156");
$("#busp_email").removeClass("field_validation_error hidden");
$("#busp_email").addClass("field_validation_error");
}
},
rules: {
business_email: "required"
},
messages: {
business_email: "Please enter your firstname"
}
});
});
https://jsfiddle.net/fr0dc2es/7/
With this code you can get custom replacement message and act on #bus_email:
$(function() {
//simple example 1
//click event for first button
$("#form1").validate({
rules: {
business_email: "required"
},
messages: {
business_email: "Please enter your firstname"
},
errorPlacement: function(error, element) {
if (element.attr("name") == "business_email") {
$("#bus_email").css('color',"#f42156");
$("#busp_email").removeClass("hidden");
$("#busp_email").html(error);
} else {
$("#busp_email").addClass("hidden");
$("#busp_email").html();
error.insertAfter(element);
}
}
});
});
JQueryValidation Documentation
In your JSFiddle, errorPlacement function is being called and jQueryVal is working properly.
However,
Your #busp_email is shown but empty.
Your script logic is incorrect. Why do you remove a class, and add this class right after it? Why don't you hide it?
You don't need to check for every value in errorPlacement. It is not how it works. You shouldn't define a error placement for every input in a predefined error box - you should define a common placement logics by creating dynamic error messages after an input or in a specified place; or by appending an error to the specified alert; but definitely not by checking for every item.
Why default validation error placement is not suitable for you? What do you want to change? Describe it and I will try to help you - now you just provide an invalid code without any explanations.
I need to validate that both the domain field is correct and that the placeholder field has a value. Once both are true, the Submit button will show. Using jQuery validate, I can check that the domain is correct, but its not validating the placeholder field. The playerClass rule is not being applied:
$(function() {
$("#form").validate({
rules: {
playerClass: {
required: true
}
},
submitHandler: function() {
$("body").append("<p>Validation Complete!</p>");
}
});
});
jQuery.validator.addMethod("domainChk", function(value, element, params) {
$(".submit").show();
if (this.optional(element)) return true;
var regExp = new RegExp("^(?!www\\.|http:\/\/www\.)(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\\.)+([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\-]*[A-Za-z0-9])$");
return regExp.test(value);
},
function errmess(params, element) {
$(".submit").hide();
return "Valid hostname required for player code";
});
jQuery.validator.addClassRules({
domainChk: {
domainChk: true
}
});
jsFiddle: Link
The playerClass rule is not being applied
Your second field, with name="playerClass" is not being validated because you've applied no validation rules to it. There is no such rule called playerClass in your jsFiddle or in your OP, and you've applied no rules to the playerClass field in your jsFiddle.
Even if playerClass was a custom rule, the form is considered valid because the playerClass field is optional in your jsFiddle. Without the required rule, when the field is left blank, it's valid.
You've also failed to close your <form> element in the jsFiddle. There is no </form> tag.
EDIT:
As per documentation, any ajax() should go inside the submitHandler function within the .validate() method.
In other words, you are breaking the validation plugin with your click handler.
I need to validate that both the domain field is correct and that the placeholder field has a value. Once both are true, the Submit button will show.
Then why are you showing the submit button from within the domainChk rule? Once this rule is passed, you're showing the button with $(".submit").show().
You would typically use the .valid() method to test the form and show/hide the button.
$('input[type="text"]').on('click keyup blur', function() {
if ($('#form').valid()) {
$(".submit").show();
} else {
$(".submit").hide();
}
});
This is much closer to how it should be: http://jsfiddle.net/e04rca0t/2/
I pull what to display on a particular form from my database, so the form elements are dynamic.
I display radio buttons, or checkboxes or textboxes/textareas depending on how I want the form to display.
Before someone submits the form, I have to validate that each form entry (radio, checkbox, textbox etc) has been selected.
How can I insert validation to these dynamic form elements?
Example:
<input type="checkbox" id="#formInputId" name="#formInputName" value="#element.Id" />
to get started, you can also inject JSON/Javascript into the view. Though this is not preffered because then you wont be able to make a separate js file out of it. But in case of validation of dynamic forms i did this earlier.
since your form ids are coming from the database you know Id of each control therefore you can identify each element separately using jquery.
jquery validation plugins makes it very easy to add validation rules. So you just make the validation rules server side with something like this.
forEach(FormElement element in Model.FormElements){
dynamic rules = new ExpandoObject();
//set all the rule here.
ViewBag.ElementId = rules;
}
basic rules structure is given here.
Then inside the view when you are rendering the controls. check for
#if(ViewData.ContainsKey("[ElementId]")){
//if it exists
//inject json using newtonsoft json
<script>
$('##Html.raw([ElementId])').rules("Add", JsonConvert.SerializeObject(ViewData["ElementId"]))
</script>
}
Have you looked at the jquery validation plugin? Why try to reinvent the wheel. It's pretty simple to use.
Check this Demo
Here is the link to the official docs. http://jqueryvalidation.org/documentation/
Html
<form id="myform">
<input name="product[0][name]" id="form_product[0][name]" data-rule-required="true" />
<input name="product[1][name]" id="form_product[1][name]" data-rule-required="true" />
<input name="product[2][name]" id="form_product[2][name]" data-rule-required="true" />
<br/>
<br/>
<br/>
<input type="submit" />
add one field
Validation Documentation
css
#docs {
display: block;
position: fixed;
bottom: 0;
right: 0;
}
js
$(document).ready(function () {
$('#myform').validate({ // initialize the plugin
submitHandler: function (form) { // for demo
alert('valid form submitted'); // for demo
return false; // for demo
}
});
$('button').one('click', function () {
$('#myform').append('<input name="product[3][name]" id="form_product[3][name]" data-rule-required="true">');
});});
DEMO jsfiddle HERE
You should be able to parse the elements dynamically with the unobtrusive validation, however you'll need to add the appropriate attributes to trigger the appropriate validation first. Fundamentally it's very similar to what's happening in this question where they are adding elements dynamically by javascript.
If you can output a json blob of validations you can use this: https://github.com/parris/iz#json
It will let you specify a JSON blob of rules as such:
var rules = {
'cost': [
{
'rule': 'between',
'args': [17, 1000],
'error': 'The cost must be between 17, 1000'
},
{
'rule': 'required',
'error': 'You must specify a cost'
},
],
'producer.id': [
{
'rule': 'int',
'error': 'Producer ID must be an int'
}
],
'producer.name.first': [
{
'rule': 'alphaNumeric',
'error': 'Must be names and numbers'
}
]
};
Then collect your values and validate like this:
are(rules).validFor({
cost: 20,
producer: {
id: 1,
name: {
first: 'bob'
}
}
});
It has some built in validations that should pretty closely match what you need. If not, you can shim in some custom validations.
Note: Iz, is a library I wrote, and yes I am totally pitching it to you right now.
The JQuery Validate plugin should work (see http://jqueryvalidation.org).
It sounds like all you need is to mark all fields required, so you can add a required rule to them by using a class, which would avoid having to coordinate ids/names of your dynamic elements between the model and the javascript.
Change your input line to:
<input type="checkbox" id="#formInputId" name="#formInputName"
value="#element.Id" class="requiredField" />
Then in your javascript:
$(document).ready(function() {
var form = $( "#MyForm" );
form.validate();
jQuery.validator.addClassRules('requiredField', {
required: true
});
form.on('submit', function () {
if (form.valid()) {
form.submit();
}
});
});
You can also check validity of individual elements by using (selector).valid(). You can add other validation rules (besides required) by adding to the list of class rules.
You could also use Jquery Validate engine .
In which, you just have to manage class attribute of the dynamic element.
I suggest you, you could use Hook of Jquery Validate Engine.
It will be easy for you.
I have recently answered a question where we do no of things with jQuery, if you want to user custom jQuery, take reference as follows:
On form element you can use recursive code for ex: in case of a checkbox
$(document).ready(function () {
$('#new_user_form *').filter(':checkbox').each(function(){
if(this.id=='row1' && this.value=='3') {
} else {
$(this).attr("checked",false);
}
});
});
Will work same for other type of element i.e input, radio etc.
On selecting a checkbox disable spefic checkboxes
Review above for more, comment for more info or a small demo form.
i have achieved the same requirement using jQuery Validation Plugin
Place the following code in script section of your page.
you need to add the form-data class to your form and add required_field while adding the elements to page.
var validator = null;
$(document).ready(function () {
try {
var validatedForm = $(".form-data");
validator = validatedForm.validate && validatedForm.validate({
rules: {
required_field: {
required: true
}
},
messages: {
required_field: {
required: " "
}
},
errorElement: "span",
showErrors: function (errorMap, errorList) {
this.defaultShowErrors();
},
highlight: function (element) {
// do something like
$(element).closest('...').removeClass('success').addClass('error');
},
unhighlight: function (element) {
// do something like
$(element).closest('...').removeClass('error');
},
submitHandler: function(form) {
// submit form
form.submit();
}
success: function (element) {
// do something like
$(element).closest('...').removeClass('error').end().remove();
},
onfocusout: function (element) {
$(element).valid();
},
});
$.each($(".required_field"), function (index, value){
$(value).rules( "add", {
required: true,
messages: {
required: " "
}
});
});
} catch(err) {
console.log("javascript error", err);
}
});
While submitting you can check if the form is valid or not:
if($('#formId').valid()) {
...
i guess the best way is make your client-side validation using $.validate plugin and in your POST action create methods to validate your data. I always suggest to not mix javascript with csharp, or others places, to maintains things organized.
I know this seems like a repeat question, but i've read all the others and they arn't quite the same :(
I've got some drop downs, and if they have something other then an option with a value of "0" selected then I want the coresponding Expiry Date field to be required.
I tried putting the rule in the class of the objects, and using the rules('add') function. Here's where i am at right now:
$('[id^=ExpiryDate]').each(function() {
$(this).rules('add',
{ required: function() {
if ($('#q' + id).val() == '0') {
return false;
}
else {
return true;
}
}
}
);
my expiry date fields are id'ed like "ExpiryDate1", "ExpiryDate2" and the corresponding drop downs are ided like "q1" and "q2".
this makes my scripts fail. it doesn't give any errors in the error console or firebug. but it doesn't execute any javascript that occurs after it either.
I have a feeling it's something really obvious and stupid that i am missing. but i've been staring at this code for a couple hours now and can't find it!
Thanks in advance!
Try this:
$('[id^=ExpiryDate]').each(function() {
var id = $(this).attr('id').replace('ExpiryDate','');
$(this).rules('add', {
required: function() {
return $('#q' + id).val() !== '0';
}
}
);
Currently, your id is undefined, so it's just not finding any elements. The rest is just a shorter version.