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JS implementation of click to move up and down LI row data example explanation

巴扎黑
巴扎黑Original
2017-09-14 11:55:362258browse

本文实例讲述了JS实现点击上移下移LI行数据的方法。分享给大家供大家参考。具体如下：

这里演示JavaScript排序功能，点击按钮实现数据的上移和下称，一共有两组测试效果，上组采用箭头图标控制的方式，更美观，下组是直接使用文字，根据你的需要自行选择。myList为ul的id值，m为0显示文字，m为1显示图片，mO、mT为文字或图片内容。

演示效果如下图所示：

具体代码如下：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
<title>JS移动li行数据，点击上移下移</title>
<style type="text/css">
 * {
  padding:0;
  margin:0;
 }
 .content {width:500px;margin:20px auto;}
 #pCon {width:500px;list-style:none;}
 #pCon li {height:20px;display:block;border-bottom:1px #ccc solid;}
 #pCon li a{margin-left:5px;text-decoration:none;}
 #pCon li a:hover{cursor:hand;}
 .context {float:left;display:inline;}
 .control {float:right;display:inline;}
 .control img {width:50px;height:12px;overflow:hidden;float:left;display:inline;}
 hr {margin:30px auto;}
 #pCon1 {width:500px;list-style:none;}
 #pCon1 li {height:20px;display:block;border-bottom:1px #ccc solid;}
 #pCon1 li a{margin-left:5px;text-decoration:none;}
 #pCon1 li a:hover{cursor:hand;}
</style>
</head>
<body>
<p class="content">
<ul id="pCon">
<li><p class="context">点击右侧箭头上移下移A</p></li>
<li><p class="context">点击右侧箭头上移下移B</p></li>
<li><p class="context">点击右侧箭头上移下移C</p></li></ul>
<hr/>
<ul id="pCon1">
<li><p class="context">测试数据你相信么A</p></li>
<li><p class="context">测试数据你相信么B</p></li>
<li><p class="context">测试数据你相信么C</p></li>
</ul>
</p>
<script>
function moveSonU(tag,pc){
 var tagPre=get_previoussibling(tag);
 var t=document.getElementById(pc);
 if(tagPre!=undefined){
  t.insertBefore(tag,tagPre);
 }
}
function moveSonD(tag){
 var tagNext=get_nextsibling(tag);
 if(tagNext!=undefined){
  insertAfter(tag,tagNext);
 }
}
function get_previoussibling(n){
 if(n.previousSibling!=null){
  var x=n.previousSibling;
  while (x.nodeType!=1)
  {
   x=x.previousSibling;
  }
  return x;
 }
}
function get_nextsibling(n){
 if(n.nextSibling!=null){
  var x=n.nextSibling;
  while (x.nodeType!=1)
  {
   x=x.nextSibling;
  }
  return x;
 }
}
function insertAfter(newElement,targetElement){
 var parent=targetElement.parentNode;
 if(parent.lastChild==targetElement){
  parent.appendChild(newElement);
 }else{
  parent.insertBefore(newElement,targetElement.nextSibling);
 }
}
function myOrder(myList,m,mO,mT){
//myList为ul的id值，m为0显示文字，m为1显示图片，mO、mT为文字或图片内容
 var pCon=document.getElementById(myList);
 var pSon=pCon.getElementsByTagName("li");
 for(i=0;i<pSon.length;i++){
  var conTemp=document.createElement("p");
  conTemp.setAttribute("class","control");
  var clickUp=document.createElement("a");
  var clickDown=document.createElement("a");
  if(m==0){
  var upCon=document.createTextNode(mO);
  var downCon=document.createTextNode(mT);
  }else{
  var upCon=document.createElement("img");
  var downCon=document.createElement("img");
  upCon.setAttribute("src",mO);
  downCon.setAttribute("src",mT);
  }
  clickUp.appendChild(upCon);
  clickUp.setAttribute("href","#");
  clickDown.appendChild(downCon);
  clickDown.setAttribute("href","#");
  pSon[i].appendChild(conTemp);
  conTemp.appendChild(clickUp);
  conTemp.appendChild(clickDown);
  clickUp.onclick=function(){
   moveSonU(this.parentNode.parentNode,myList);
  }
  clickDown.onclick=function(){
   moveSonD(this.parentNode.parentNode);
  }
 }
}
myOrder("pCon",1,"http://files.jb51.net/file_images/article/201508/201585153341254.png?201575153424","http://files.jb51.net/file_images/article/201508/201585153353977.png?20157515349");
myOrder("pCon1",0,"上移","下移");
</script>
</body>
</html>

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