如何在jQuery中使用动态选择选项填充动态输入字段 [英] How to populate dynamic input field with dynamic select option in jquery

问题描述

我正在尝试使用所选选项的值填充输入字段，两者都是动态加载的.我能够加载选定的选项值，并且可以在选项更改时对其进行更新.但是如果有10个输入字段和10个选择选项标签，并且我从10个标签中选择一个选项，则所有10个输入字段都显示相同的值.每个输入字段都有10个选项.我需要单独更改值.

I am trying to populate input field with the value of selected option both are dynamically loaded. I am able to load selected option value and can update it when option changed. but if there are 10 input field and 10 select option tags and i select one option from 10 tags than all 10 input fields show same value. Every input field have 10 options. I need to change value individually .

这是jquery的功能

here is function of jquery,

$("#myselect").change(function () {
    $( "select option:selected" ).each(function() {
        $('.returnValue').val($( this ).text());
    });
});

我要在输入字段中插入单个产品数量.

I want to insert individual product quantity in input field.

我苦苦挣扎了两天，请帮忙.

I am struggling for two days please help.

<select id="myselect">
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
    <option value="4">4</option>
</select>

<input class="returnValue" type="text" value="">

推荐答案

您可以通过多种方式解决您的问题:

You can solve your problem in different ways:

如果选择字段和输入字段是一个接一个的，则可以使用:

If the select and input fields are one after another you may use:

$(this).next('.returnValue').val($( this ).val());

另一种方法可以基于为每个选择添加一个新属性，例如:

Another approach can be based on adding for each select a new attribute like:

input-field="newlass1"

因此，以一种链接选择和输入字段的方式将新的类添加到相应的输入字段.

And so add a new class to the corresponding input field in a way to link the select and input field.

在这种情况下，您可以这样做:

In this case you can do it:

$('input.' + $(this).attr('input-field')).val($( this ).val());

摘要:

$("[id^=myselect]").change(function () {
  
  
  //$(this).next('.returnValue').val($( this ).val());
  
  
  $('input.' + $(this).attr('input-field')).val($( this ).val());
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>


<select id="myselect1" input-field="newlass1">
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
    <option value="4">4</option>
</select>
<input class="returnValue newlass1" type="text" value=""><br>
<select id="myselect2" input-field="newlass2">
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
    <option value="4">4</option>
</select>
<input class="returnValue newlass2" type="text" value=""><br>
<select id="myselect3" input-field="newlass3">
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
    <option value="4">4</option>
</select>
<input class="returnValue newlass3" type="text" value=""><br>
<select id="myselect4" input-field="newlass4">
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
    <option value="4">4</option>
</select>
<input class="returnValue newlass4" type="text" value="">

这篇关于如何在jQuery中使用动态选择选项填充动态输入字段的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！