更改表单的提交功能

时间:2015-12-16 20:27:26

标签: javascript html

我想在任何其他onsubmit操作之前执行验证。不幸的是,我无法控制表单上onsubmit属性的值。例如:

<form id="myForm" onsubmit="return stuffICantChange()"></form>

我已尝试过以下代码和其他几种方法,但没有运气:

$("#myForm").onsubmit = function() {
    console.log("hi");
}

感谢任何帮助,谢谢。

如果这是重复的,请在标记之前告诉我,以便我可以在必要时驳回索赔。

编辑:

我要求的代码:

<form id="form_ContactUs1" name="form" method="post" action="index.php" onsubmit="return  Validator1(this) &amp;&amp; ajaxFormSubmit(this); return false">
<div class="form">

    <div class="form-staticText">
        <p>We look forward to hearing from you! Please fill out the form below and we will get back with you as soon as possible.</p>
    </div>


    <div class="form-group">
        <input class="form-control" placeholder="Name" id="IDFormField1_Name_0" name="formField_Name" value="" size="25" required="" type="text">
        <span class="form-control-feedback"></span>
    </div>


    <div class="form-group">
        <input class="form-control" placeholder="Email" id="IDFormField1_Email_0" name="formField_Email" value="" size="25" required="" type="email">
        <span class="form-control-feedback"></span>
    </div>


    <div class="form-group">
        <input class="form-control bfh-phone" data-format="ddd ddd-dddd" placeholder="Phone" id="IDFormField1_Phone_0" name="formField_Phone" value="" size="25" type="tel">
        <span class="form-control-feedback"></span>
    </div>


    <div class="form-group">
        <textarea class="form-control" placeholder="Comments" name="formField_Comments" id="IDFormField1_Comments_0" cols="60" rows="5" required=""></textarea>
        <span class="form-control-feedback"></span>
    </div>



    <div class="row submit-section">

        <input name="submit" class="btn btn-success submit-button" value="Submit" type="submit">
    </div>
</div>

$( "form" ).each(function() {

    console.log( $(this)[0] );
    sCurrentOnSubmit = $(this)[0].onsubmit;
    $(this)[0].onsubmit = null;
    console.log( $(this)[0] );

    $( this )[0].onsubmit( function() {
        console.log( 'test' );

    });

});

5 个答案:

答案 0 :(得分:0)

除了已经执行的函数之外,你应该能够不引人注意地将另一个onsubmit函数添加到#myForm

function myFunction() {
    ...
}

var myForm = document.getElementById('myForm');
myForm.addEventListener('submit',myFunction,false);

答案 1 :(得分:0)

尝试

$("#myForm").submit(function(){
   .. Your stuff..
   console.log("submit");
   return false;
});

每次提交表单时都会触发,然后结束返回false会停止表单默认操作继续。

答案 2 :(得分:0)

试试这个,这很简单Javascript:

function overrideFunction(){
  console.log('Overrided!');
}
var form;
form = document.querySelector('#myForm');
form.setAttribute('onsubmit','overrideFunction()');

问候。

答案 3 :(得分:0)

您应该在表单中的每个字段上触发更改事件以检查验证。

$('input').on('change', function(e) {
   if($(this).val() == '') {
        console.log('empty');
   } 
});

这将帮助用户更快地等待提交。

您还可以在提交前尝试点击事件。

$('#formsubmitbutton').on('click', function(e) {
   //your before submit logic

   $('#form').trigger('customSubmit'); 
});

$('#form').on('customSubmit', function(e) {
  //your normal submit
});

答案 4 :(得分:0)

尝试以下代码:

$("#myForm").on('submit',function() {
    console.log("hi");
});