public IActionResult EditUser(string domainLogin)
        {
            Security security = new Security();

            security.DomainLogin = domainLogin;

            security.GetDomainInfo();

            return PartialView(security);
        }

$(document).ready(function () {
    $('.my-checkbox').change(function () {
        alert($(this).prop('checked'))
    });
})

<div class="container">
    <label>
        <input type="checkbox" name="my-checkbox" class="my-checkbox">Some caption
    </label>

    <div id="hideableDiv" class="hiddenByDefault">
        Some hidable content
    </div>
</div>