asp.net - How do I clear MVC client side validation errors when a cancel button is clicked when a user has invalidated a form?

Question

I have a partial view that is rendered within a main view. The partial view takes advantage of System.ComponentModel.DataAnnotations and Html.EnableClientValidation().

A link is clicked, and div containing the partial view is displayed within a JQuery.Dialog().

I then click the save button without entering any text in my validated input field. This causes the client side validation to fire as expected, and display the '*required' message beside the invalid field.

When the cancel button is clicked, I want to reset the client side MVC validation back to it's default state and remove any messages, ready for when the user opens the dialog again. Is there a recommended way of doing this?

Answer 1

This answer is for MVC3. See comments below for help updating it to MVC 4 and 5

If you just want to clear the validation-messages so that they are not shown to the user you can do it with javascript like so:

function resetValidation() {
        //Removes validation from input-fields
        $('.input-validation-error').addClass('input-validation-valid');
        $('.input-validation-error').removeClass('input-validation-error');
        //Removes validation message after input-fields
        $('.field-validation-error').addClass('field-validation-valid');
        $('.field-validation-error').removeClass('field-validation-error');
        //Removes validation summary 
        $('.validation-summary-errors').addClass('validation-summary-valid');
        $('.validation-summary-errors').removeClass('validation-summary-errors');

    }

If you need the reset to only work in your popup you can do it like this:

function resetValidation() {
        //Removes validation from input-fields
        $('#POPUPID .input-validation-error').addClass('input-validation-valid');
        $('#POPUPID .input-validation-error').removeClass('input-validation-error');
        //Removes validation message after input-fields
        $('#POPUPID .field-validation-error').addClass('field-validation-valid');
        $('#POPUPID .field-validation-error').removeClass('field-validation-error');
        //Removes validation summary 
        $('#POPUPID .validation-summary-errors').addClass('validation-summary-valid');
        $('#POPUPID .validation-summary-errors').removeClass('validation-summary-errors');

    }

I hope this is the effect you seek.