I am using jquery form validation plugin
http://bassistance.de/jquery-plugins/jquery-plugin-validation/
If form is invalid my server gives response in name pair combination where
:
data:
email:"Is invalid"
name" "Is invalid"
is it possible to use with jquery ajax on form submit and mark field as an error using this plugin ?
The jQuery validate plugin is all about client validation. It supports remote validation as well but it is intended to be used to validate a single field but you can send additional fields to the server to validate this single field. If you are performing your entire validation of multiple fields on the server (which you always should), you'd better leave it to the server when the form is submitted.
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I used parsely validation in ajax i dont know how take error from response and display it in html form.
I used parsely validation in ajax i dont know how take error from response and display it in html form.
We've created a custom FormEngineUserControl to capture date input using 3 text inputs for day/month/year.
On the server we override the bool IsValid() method which works fine and displays the error message if invalid.
However we want to use client side validation also, we can use a CustomValidator control and assign a ClientValidationFunction to call a JS method however this is not then combined with the server validation function and we end up with two validation messages, one that removes when client validation passes, and one that only disappears when the form is re-submit, basically rendering the client validation useless.
Is there no way to register a client validation method with a custom form control? that will then be combined with the server method and error label etc. ?
This should work pretty much like any other .net user control. How are you preventing further processing if the validator returns false? You might need to set StopProcessing property to true.
There a few similar topics which might address your porblem:
stop execution in Custom validator if it false
Custom validator fires but does not prevent postback
I don't think this is feasible as I'm not sure how you could combine client vs server side validation. You cannot ever disable server side validation. The client side validation is just there for better UX, its not secured by any means. The general idea this is used is that you disable form submission until all fields are verified on the client side. If the validation is the same on the server, you should not see the same error messages because otherwise it wouldn't go pass the client in the first place.
The way you could do this in Kentico is to use some custom js (or better yet some framework/library to help you with validation such as validate.js), give Kentico form some id/class and connect the form validation with your js and have each side (client/server) do its job.
Hi I am using this form validation Plugin to validate a form
http://bassistance.de/jquery-plugins/jquery-plugin-validation/
I need to check one email field valid and it exists in db or not.
any solutions appreciated !
First use that plugin to validate if email field is correct. After that use for example .ajax()-function from jquery to send validated email to server. I don't know what is your backend, so it is hard to say how exactly you should do the backend part, but basicly you need to do database query which checks if email is in the database or not. After that function can return value to client and so on...
I've been googling phrases like "form validation javascript" and "form validation ajax" but I only find code involving form validation upon the form submission. I want to write code that determines whether the field has valid input right when the user is inputting the data. How do I go about this?
You can use the jQuery Validation Plugin, which does both.
i use remote method of validator for checking if username exists in DB
my scenario:
form with one field (username of course)
i filled field
it passes validation, but i don't sending form yet
going to DB inserting username that i filled in form that i still don't sent yet
returning to my form press on submit btn
voila, it pass validation (here the issue if u don't understand yet)
of course i did validation on the server side too, but it will be great that validation for remote method will fire too when sending form
p.s. i'm using 1.5.5 version but see that this issue still exists
If I'm reading this properly, jQuery is not at fault here.
If this isn't correct let me know. I am imagining a registration form.
I go to your form, enter a username. jQuery says the username is available using the remote validation technique.
Before I click submit, someone else submits the same form with the same username, and gets it.
I can still submit the form, even though I have an already taken username.
This is a classic scenario. A concurrency problem. The data is now stale that was pulled by jQuery validation during my registration. You need to adjust for this scenario in your remote page or make jquery validation run on form submit as well. You could just call validate() on your form in the submit method of your form.