无法使用jquery获取表单中的select字段的值

I want to get the value of all elements in a form on submit button. I serialize the data in the form but for some reasons that I don't understand in the serialised data the value of selected option on select field is not included there.

我想在提交按钮上获取表单中所有元素的值。我在表单中序列化数据但由于某些原因我在序列化数据中不理解,选择字段中所选选项的值不包括在那里。

Here's a Js fiddle

这是一个Js小提琴

My form looks like this:

我的表单看起来像这样:

<form id='foo'>
      <p>
        <label>Message</label>
        <textarea id='message' name='message' rows='5'></textarea>
      </p>
      <br/>
      <p>
           <label>Name</label>
           <select id = "name">
             <option value = "1">one</option>
             <option value = "2">two</option>
             <option value = "3">three</option>
             <option value = "4">four</option>
           </select>
        </p><br/>
        <div id='success'></div>
        <button type='submit'>Send</button>
    </form>

    <p id="showdata">

    </p>

On submit of this form I some jquery code that handles it. It looks like this :

在提交此表单时,我会处理一些jquery代码。它看起来像这样:

// Bind to the submit event of our form
$("#foo").submit(function(event){

    // Abort any pending request
    if (request) {
        request.abort();
    }
    // setup some local variables
    var $form = $(this);

    // Let's select and cache all the fields
    var $inputs = $form.find("input, select, button, textarea");

    // Serialize the data in the form
    var serializedData = $form.serialize();
    $('#showdata').html(serializedData);

});

Can somebody help me to understand where is my problem! Thank you in advance.

有人可以帮我理解我的问题在哪里!先感谢您。

3 个解决方案

#1

Forms work on the name, and not ID attribute. Give you select element a name value and it will work.

表单适用于名称,而不是ID属性。为您选择元素一个名称值,它将起作用。

#2

Your code seems to correct but you have a mistake. Look at select , it has no attribute name. So, $form.serialize() will not work on this element.

你的代码似乎是正确的,但你有一个错误。看看select,它没有属性名称。因此,$ form.serialize()将不适用于此元素。

This is fixed by add attribute name to select

通过添加属性名称来修复此问题

<form id='foo'>
  <p>
    <label>Message</label>
    <textarea id='message' name='message' rows='5'></textarea>
  </p>
  <br/>
  <p>
       <label>Name</label>
       <select name="test">
         <option value="1">one</option>
         <option value="2">two</option>
         <option value="3">three</option>
         <option value="4">four</option>
       </select>
    </p><br/>
    <div id='success'></div>
    <button type='submit'>Send</button>
</form>

<p id="showdata">

</p>

More information : Form Serialize

更多信息:表单序列化

#3

If you use $form.serialize() in select element you should add attribute name in there because $form.serialize() will get values from attribute name

如果在select元素中使用$ form.serialize(),则应在其中添加属性名称,因为$ form.serialize()将从属性名称中获取值

Update

https://jsfiddle.net/drhe1L9u/

Add attribute name to select element

添加属性名称以选择元素

#1