[英]jQuery tree from select list (options) with checkboxes. possible?
我正在寻找一个jQuery插件/脚本来做这样的事情:
根据我目前的情况:
<select name="">
<option disabled="disabled" value="1">Category A</option>
<option value="2">Category A1</option>
<option value="3">Category A2</option>
<option value="4">Category A3</option>
<option disabled="disabled" value="5">Category B</option>
<option value="6">Category B1</option>
<option value="7">Category B2</option>
<option value="8">Category B3</option>
</select>
可能吗? 还是我必须以某种方式从SELECT更改为UL,将OPTIONS更改为LI?
是的, UL
, OL
和子IL
是创建“ treeview”的规范。
您已链接到UL
和LI
的示例。
使用Chrome之类的浏览器,然后右键单击页面上的元素以查看HTML,您将学到很多东西!
我必须以某种方式从SELECT更改为UL,将OPTIONS更改为LI?
如果您希望使用select
\\ option
构造不那么复杂,那么由于您可以嵌入option
的元素数量有限,更不用说生成有效的HTML了。
我想你会需要寻找到ul
li
集。
Dynatree如何做到的?
如果您查看链接的示例页面的源代码,则会看到以下内容,其中使用ul
li
集以及spans
作为sub ul
\\ li
元素的顶级元素,准确显示了用于创建该页面的元素。
此外,在span
集中,您会发现更多的spans
,每个spans
都有一个类。 这些类使用CSS为同一Sprite-sheet中的文件夹,扩展器以及复选框注入图像。
使用来自HTML和CSS的以下数据,您可以开始正确的方向。
这是其中一棵树的HTML:
<ul class="dynatree-container" style="">
<li class=""><span class="dynatree-node dynatree-exp-c dynatree-ico-c"><span class="dynatree-connector"></span><span class="dynatree-checkbox"></span><span class="dynatree-icon"></span><a href="#" class="dynatree-title" title="Look, a tool tip!">item1 with key and tooltip</a>
</span>
</li>
<li class=""><span class="dynatree-node dynatree-selected dynatree-exp-c dynatree-ico-c"><span class="dynatree-connector"></span><span class="dynatree-checkbox"></span><span class="dynatree-icon"></span><a href="#" class="dynatree-title">item2: selected on init</a>
</span>
</li>
<li class=""><span class="dynatree-node dynatree-folder dynatree-has-children dynatree-exp-c dynatree-ico-cf"><span class="dynatree-expander"></span><span class="dynatree-checkbox"></span><span class="dynatree-icon"></span><a href="#" class="dynatree-title">Folder</a>
</span>
</li>
<li class="dynatree-lastsib"><span class="dynatree-node dynatree-expanded dynatree-has-children dynatree-lastsib dynatree-exp-el dynatree-ico-e"><span class="dynatree-expander"></span><span class="dynatree-checkbox"></span><span class="dynatree-icon"></span><a href="#" class="dynatree-title">Document with some children (expanded on init)</a>
</span>
<ul style="">
<li class=""><span class="dynatree-node dynatree-has-children dynatree-active dynatree-exp-c dynatree-ico-c"><span class="dynatree-expander"></span><span class="dynatree-checkbox"></span><span class="dynatree-icon"></span><a href="#" class="dynatree-title">Sub-item 4.1 (active on init)</a>
</span>
</li>
<li class=""><span class="dynatree-node dynatree-has-children dynatree-selected dynatree-exp-c dynatree-ico-c"><span class="dynatree-expander"></span><span class="dynatree-checkbox"></span><span class="dynatree-icon"></span><a href="#" class="dynatree-title">Sub-item 4.2 (selected on init)</a>
</span>
</li>
<li class=""><span class="dynatree-node dynatree-exp-c dynatree-ico-c"><span class="dynatree-connector"></span><span class="dynatree-icon"></span><a href="#" class="dynatree-title">Sub-item 4.3 (hideCheckbox)</a>
</span>
</li>
<li class="dynatree-lastsib"><span class="dynatree-node dynatree-lastsib dynatree-exp-cl dynatree-ico-c"><span class="dynatree-connector"></span><span class="dynatree-checkbox"></span><span class="dynatree-icon"></span><a href="#" class="dynatree-title">Sub-item 4.4 (unselectable)</a>
</span>
</li>
</ul>
</li>
</ul>
以下是用于以上HTML的一些CSS 。
对于复选框dynatree-checkbox
,图标dynatree-icon
和扩展器dynatree-expander
类,此CSS用来指向相同的sprite-sheet,唯一改变的是在工作表上的位置选择所使用的图像:
span.dynatree-empty,
span.dynatree-vline,
span.dynatree-connector,
span.dynatree-expander,
span.dynatree-icon,
span.dynatree-checkbox,
span.dynatree-radio,
span.dynatree-drag-helper-img,
#dynatree-drop-marker
{
width: 16px;
height: 16px;
/* display: -moz-inline-box; /* @ FF 1+2 removed for issue 221 */
/* -moz-box-align: start; /* issue 221 */
display: inline-block; /* Required to make a span sizeable */
vertical-align: top;
background-repeat: no-repeat;
background-position: left;
background-image: url("icons.gif");
background-position: 0 0;
}
您不能将SELECT元素样式化为树形结构,例如。 而且,根据您的情况,您只能选择一项。 但是您可以根据您的SELECT元素通过UL和LI-s创建树结构,并隐藏SELECT元素以将所选项目存储在树结构中。
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