显示内的jQuery val():无 [英] jQuery val() inside display: none

问题描述

<a href="#addFriend" rel="facebox" title="[+] add <?php echo $showU["full_name"]; ?> as friend">
    <div class="addFriend"></div></A>

<div id="addFriend" style="display:none; margin: auto;">
    <form action="javascript:DoFriendRequest()" method="post">
        <input name="commentFriend" type="text" id="commentFriend" value="" size="22"> 
        <input name="submit" type="submit" id="submit" value="Send">
    </form>
</div>

当我的表单位于该元素(即jquery灯箱)中时，字段#commentFriend在DoFriendRequest中获取空值

My form when it's inside this element which is a jquery lightbox, the field #commentFriend get empty value in DoFriendRequest

function DoFriendRequest() {
    var wrapperId = '#insert_svar';
    $.ajax({ 
        type: "POST",
        url: "misc/AddFriendRequest.php",
        data: {
            mode: 'ajax',
            comment : $('#commentFriend').val() 
        },
        success: function(msg) {
            $(wrapperId).prepend(msg);
            $('#commentFriend').val("");
        }
    });
}

更新后的答案

但是当我删除display:none时，它可以工作.我该如何解决?

But when I remove the display:none, it works. How can I solve this?

推荐答案

对于具有display:none的字段，看来val()不起作用.

For fields with display:none, it seems that val() does not work.

我通过attr()绕过此行为:

$('input').attr('value',myNewValue);

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