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I currently have a form within a lightbox frame on my webpage. When a user submits the form with invalid data, a div appears with a list of form errors at the top of the form. The problem is: I need some sort of jQuery validation callback to resize the lightbox after the errors div appears. As far as I'm aware, there is no way to do this with the jQuery lightbox.
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Validation in JQuery: Using JQuery, a form is validated on the client-side before it is submitted to the server, hence saves the time and reduce the load on the server. Form Validation means to validate or check whether all the values are filled correctly or not.
$("#form_id"). valid(); Checks whether the selected form is valid or whether all selected elements are valid. validate() needs to be called on the form before checking it using this method.
Unobtrusive Validation means without writing a lot of validation code, you can perform simple client-side validation by adding the suitable attributes and including the suitable script files. These unobtrusive validation libraries need to be added: jquery.validate.min.js.
you to supply the invalid callback function which you can find documented here, like so
$(".selector").validate({
invalidHandler: function(form, validator) {
var errors = validator.numberOfInvalids();
if (errors) {
//resize code goes here
}
}
})
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