div模拟实现select下拉框 

 1 <!DOCTYPE html>
 2 <html>
 3 
 4 <head>
 5     <title></title>
 6     <style type="text/css">
 7      #gridComboBox {
 8         background: #fff;
 9         border: 1px solid #2d78f4;
10         border-radius: 2px;
11         -moz-box-shadow: inset 0 0 4px #06c;
12         -webkit-box-shadow: inset 0 0 4px #06c;
13         box-shadow: inset 0 0 4px #06c;
14     }
15     </style>
16 </head>
17 
18 <body>
19     <input  onclick="doClick(this,'ddd(aa/bb/cc/erererer/dfdfdfdfdfdfdfdfdfdfdfdfdf/ejjejrjerjer//erererer ////////)eee')" />
20     <input  onclick="doClick(this,'ddd(aa/bb/cc/erererer/dfdfdfdfdfdfdfdfdfdfdfdfdf/ejjejrjerjer//erererer ////////)eee')" style='width: 300px;' />
21     <p><b>Needed Properties:</b> sender.offsetTop & sender.offsetLeft & sender.offsetHeight</p>
22 </body>
23 
24 </html>
25 <script type="text/javascript">
26 
27 function delGridComboBox() { // 删除弹出框
28     var divContainer = document.getElementById('gridComboBox');
29     if (divContainer) {
30         divContainer.parentNode.removeChild(divContainer);
31     }
32 }
33 
34 function doClick(sender, str) {//str='ddd(aa/bb/cc/erererer/dfdfdfdfdfdfdfdfdfdfdfdfdf/ejjejrjerjer//erererer ////////)eee' 只取()得内容/分割做为数据源
35 
36     delGridComboBox();
37 
38     // console.log(sender);
39     // for(var i in sender)  
40     // {
41     //     console.log(i+"|"+sender[i]);
42     // }
43 
44    
45     var re = /[^\)\(]*/g //取出()中的内容作为下拉数据源
46     var fit = str.match(re);
47     var fmt = fit[2].split('/');
48 
49     var divContainer = document.createElement('div');
50     divContainer.style.width = sender.clientWidth + 2 + "px";
51     divContainer.style.overflow = "hidden";
52     divContainer.style.position = 'absolute'; 
53     divContainer.style.top = sender.offsetTop + sender.offsetHeight + 'px';
54     divContainer.style.left = sender.offsetLeft + 'px';
55     divContainer.style.zIndex = 999;
56     divContainer.id = "gridComboBox";
57 
58     for (var i = 0; i < fmt.length; i++) {     
59 
60         console.log('fmt[i]>>', fmt[i]);
61         var txt = document.createElement('div'); 
62         txt.innerHTML = fmt[i];
63         txt.title = txt.innerHTML;
64         txt.style.margin = 3+'px';        
65         txt.addEventListener('mouseover', function changeBg(event) {
66             event.target.style.fontWeight = 'bold';
67             event.target.style.color = 'white';
68             event.target.style.backgroundColor = '#2d78f4';
69         }, false);
70         txt.addEventListener('mouseout', function unChangeBg(event) {
71             event.target.style.fontWeight = 'normal';
72             event.target.style.color = 'black';
73             event.target.style.backgroundColor = 'white';
74         }, false);
75         txt.onclick = function(subSender) {
76             sender.value = subSender.target.innerText;
77             delGridComboBox();
78         };
79         divContainer.appendChild(txt);
80     };
81     
82     document.body.appendChild(divContainer);
83 };
84 </script>

原文地址:  http://www.cnblogs.com/xuejianxiyang/p/4959912.html

posted @ 2015-11-12 18:48  Ace001  阅读(8032)  评论(0)  编辑  收藏  举报