jquery - 如何让子元素可见不可见维护正确的父子关系

Question

我制作了一个有子元素的 div，这些子元素也有子元素。我希望当用户单击“显示”按钮时，将出现子元素。同时将设置“隐藏”按钮而不是“显示”按钮。如果用户点击“隐藏”按钮，则会发生相反的事件。我可以成功地放置一些 jQuery 代码。但问题是，当任何人点击“显示”按钮时，它会显示每个子元素和子元素的子元素。但是，我希望如果用户点击“A”元素上的“显示”按钮，它只会打开 A 的 child ，如果他们点击 A 的 child 上的“显示”按钮，那么应该只显示 A 的 child 的 child .

这是我的工作示例:http://jsfiddle.net/learner73/PcNu2/

<div class="box">
    <ul>
        <li>
            <div class="row">
                <p class="left">A</p>
                <a href="#" class="right showButton">Show</a>
                <a href="#" class="right hideButton">Hide</a>
            </div>
            <ul class="child">
                <li>
                    <div class="row">
                        <p class="left">- A's Child 1</p>
                        <a href="#" class="right showButton">Show</a>
                        <a href="#" class="right hideButton">Hide</a>
                    </div>
                    <ul class="child child2">
                        <li>
                            <div class="row">
                                <p class="left">- A's Child 1's child 1</p>
                            </div> 
                        </li>
                        <li>
                            <div class="row">
                                <p class="left">- A's Child 1's child 2</p>
                            </div> 
                        </li>
                    </ul>
                </li>
                <li>
                    <div class="row">
                        <p class="left">- A's Child 2</p>
                        <a href="#" class="right showButton">Show</a>
                        <a href="#" class="right hideButton">Hide</a>
                    </div>
                    <ul class="child child2">
                        <li>
                            <div class="row">
                                <p class="left">- A's Child 2's child 1</p>
                            </div> 
                        </li>
                        <li>
                            <div class="row">
                                <p class="left">- A's Child 2's child 2</p>
                            </div> 
                        </li>
                    </ul>
                </li>
            </ul>
        </li>
        <li>
            <div class="row">
                <p class="left">B</p>
                <a href="#" class="right showButton">Show</a>
                <a href="#" class="right hideButton">Hide</a>
            </div>
            <ul class="child">
                <li>
                    <div class="row">
                        <p class="left">- B's Child 1</p>
                    </div>
                </li>
            </ul>
        </li>
    </ul>
</div>

Answer 1

我会在每个级别只使用一个按钮并相应地更新: http://jsfiddle.net/sbritton/J6c3z/

<div class="box">
    <ul>
        <li>
            <div class="row">
                <p class="left">A</p>
                <a href="#" class="right showButton">Show</a>                
            </div>
            <ul class="child">
                <li>
                    <div class="row">
                        <p class="left">- A's Child 1</p>
                        <a href="#" class="right showButton">Show</a>                        
                    </div>
                    <ul class="child child2">
                        <li>
                            <div class="row">
                                <p class="left">- A's Child 1's child 1</p>
                            </div> 
                        </li>
                        <li>
                            <div class="row">
                                <p class="left">- A's Child 1's child 2</p>
                            </div> 
                        </li>
                    </ul>
                </li>
                <li>
                    <div class="row">
                        <p class="left">- A's Child 2</p>
                        <a href="#" class="right showButton">Show</a>                        
                    </div>
                    <ul class="child child2">
                        <li>
                            <div class="row">
                                <p class="left">- A's Child 2's child 1</p>
                            </div> 
                        </li>
                        <li>
                            <div class="row">
                                <p class="left">- A's Child 2's child 2</p>
                            </div> 
                        </li>
                    </ul>
                </li>
            </ul>
        </li>
        <li>
            <div class="row">
                <p class="left">B</p>
                <a href="#" class="right showButton">Show</a>                
            </div>
            <ul class="child">
                <li>
                    <div class="row">
                        <p class="left">- B's Child 1</p>
                    </div>
                </li>
            </ul>
        </li>
    </ul>
</div>


$(".box").on('click','.showButton', function(){
  $(this).parent().next("ul.child").show();
  $(this).removeClass('showButton').addClass('hideButton').text('Hide');

});

$(".box").on('click','.hideButton', function(){  
  $(this).closest('li').find(".child").hide();
  $(this).closest('li').find('.hideButton').removeClass('hideButton').addClass('showButton').text('Show');
});