javascript - Is there an event I can listent to that takes place after a form submit and after the form has been verified with HTML5?

Question

I have this form:

   <div id="account-form">
        <form action="/Account/Login" id="login-form" class="form" method="post">
            <div id="input-fields">
                <div>
                    <input class="data-entry medium-margin" id="UserName" name="UserName" placeholder="Username (or guest)" required="required " size="25" type="text" value="">
                </div>
                <div>
                    <input class="data-entry medium-margin" id="Password" name="Password" placeholder="Password (or guest)" required="required " size="25" type="password">
                </div>
                <div>
                    <input class="data-entry inline-checkbox" id="RememberMe" name="RememberMe" type="checkbox" value="true"><input name="RememberMe" type="hidden" value="false">
                    <p style="margin-top: 0;">Remember me?</p>
                </div>
            </div>
            <button class="data-entry medium" id="login" type="submit">Login</button>
            <button class="data-entry medium" id="register" type="button" onclick="location.href='/Account/Register'">Register</button>
        </form>
    </div>

and this javascript that disables the inputs after the form submit.

 <script type="text/javascript">
    (function() {
        document.getElementsByClassName('form')[0]
            .addEventListener("submit", function () {
                var inputs = document.getElementsByClassName("data-entry");
                for (i = 0; i < inputs.length; i++) {
                    inputs[i].disabled = true;
                }
    })();
</script>

When I enter login data and then click submit the inputs are disabled and the submit verification fails saying that the input fields are not filled out.

Is there some way I can disable the input fields after HTML5 verification?

Answer 1

只需安排一个超时为 0 的回调

.addEventListener("submit", function () {
    setTimeout(function() {
        var inputs = document.getElementsByClassName("data-entry");
        for (i = 0; i < inputs.length; i++) {
            inputs[i].disabled = true;
        }
    }, 0); });

submit这样，一旦事件处理完成，将执行禁用代码。但是，如果验证失败，您必须重新启用这些字段，否则用户将无法更正问题。