在 jquery 中启用或禁用表单元素

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时间:2020-08-26 18:18:19  来源:igfitidea点击:

Enable or disable form elements in jquery

jquery

提问by Wern Ancheta

How do I properly disable and enable form elements using jquery. I need to disable the text form element when I click on the select. And vise versa.

如何使用 jquery 正确禁用和启用表单元素。当我点击选择时,我需要禁用文本表单元素。反之亦然。

<html>
    <head>
    <script src="jq.js"></script>
    <script>

    $(function(){

    $('#fromdate').click(function(){
        $('#yosh').attr('disabled','disabled');
        $('#fromdate').removeAttr('disabled');
    });

    $('#yosh').click(function(){
        $('#yosh').removeAttr('disabled');
        $('#fromdate').attr('disabled','disabled');
    });

    });
    </script>

    </head>
    <body>
    Sort by:
    <select name="yosh" id="yosh">
    <option value="daily">daily</option>
    <option value="weekly">yesterday</option>
    <option value="weekly">weekly</option>
    <option value="monthly">monthly</option>
    <option value="yearly">yearly</option>

    </select><br/>
    date range:<br/>

    From:<input type="text" value="" name="fromdate" id="fromdate"></input><br/>
    To:<input type="text" value="" name="todate" id="todate"></input><br/>


    Customer:<input type="text" value="" name="customer" id="customer"></input>

    </body>

    </html>

回答by Sang Suantak

Example of what i've written in the comment:

我在评论中写的例子:

<span id="spnSel">
    <select name="yosh" id="yosh">
        <option value="daily">daily</option>
        <option value="weekly">yesterday</option>
        <option value="weekly">weekly</option>
        <option value="monthly">monthly</option>
        <option value="yearly">yearly</option>
    </select>
</span>

Add this event:

添加此事件:

$('#spnSel').mouseover(function () {
   $('#yosh').prop('disabled', false);
});

You can do this for the text boxes as well. This may not be the best solution/approach but it will do the job.

您也可以对文本框执行此操作。这可能不是最好的解决方案/方法,但它可以完成工作。

回答by jondavidjohn

the syntax is

语法是

$('formelement').attr('disabled',true);

or to re-enable

或重新启用

$('formelement').removeAttr('disabled');

回答by Vivek

look at this...

看这个...

<script>

    $(function(){

    $('#fromdate').click(function(){
        $('#yosh').attr('disabled',true);
        $('#fromdate').removeAttr('disabled');
    });

    $('#yosh').click(function(){
        $('#yosh').removeAttr('disabled');
        $('#fromdate').attr('disabled',true);
    });

    });
    </script>

回答by Joko Wandiro

I test your code and i have conclusion that you can't add event while element is disabled, so you have to use trigger...

我测试了你的代码,我的结论是你不能在元素被禁用时添加事件,所以你必须使用触发器......

DEMO

演示

回答by Warren Stevens

$('#fromdate').disabled = false

$('#fromdate').disabled = false