js模拟淘宝网的多级选择菜单实现方法

2019-11-20 11:48:41

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本文实例讲述了js模拟淘宝网的多级选择菜单实现方法。分享给大家供大家参考。具体如下：

这是一款基于js模拟淘宝网的多级选择菜单代码，这款菜单是模拟淘宝网的，是很早时候的淘宝网，现在已经没有了，本款菜单可以像级联菜单那样一级一级的选择数据，最后确定出数据。

运行效果截图如下：

在线演示地址如下：

http://demo.VeVB.COm/js/2015/js-ftaobao-select-menu-codes/

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><title>模拟淘宝网菜单选择</title><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><style type="text/css" media="all">body *{ font-size:14px; margin:0; padding:0;}#CategorySelector{ clear:both; width:778px; height:220px; background-color:#FFF; margin-bottom:8px;}#CategorySelector ul{ margin:0 3px 0 0; padding:0; border:1px solid #CCC; float:left; width:189px; height:218px; overflow:auto;}#CategorySelector ul.Blank{ background-color:#F6F6F6;}#CategorySelector li{ list-style-type:none; width:auto; height:20px; margin:0 1px !important; margin /**/:0 1px 0 -15px; padding:0; border:1px solid #FFF; line-height:20px; color:#444; text-indent:3px; cursor:default;}#CategorySelector li.Selected{ background-color:#CAFFC0; border:1px solid #0A9800; color:#006623;}#CategorySelector li.IsParent{ background-image:url(//files.VeVB.COm/file_images/article/201508/201581893903737.gif); background-position:99% 50%; background-repeat:no-repeat;}#CategorySelector li.RecentUsed{ color:#170;}#CategoryTitle{ clear:both; width:778px; background-color:#FFF;}#CategoryTitle ul{ float:left;}#CategoryTitle li{ margin:0 3px 0 0; float:left; border:1px solid #CCC; width:189px; color:#0063C8; font-weight:bold; border-bottom:0px; height:23px; line-height:23px;}</style></head><body><div id="CategoryTitle"> <ul id="TitleContent">  <li>  选择宝贝类别</li>  <li>  选择游戏</li>  <li>  选择游戏区域</li>  <li>  选择服务器</li> </ul></div><div id="CategorySelector"> <ul id="Category_ItemType" class="Blank"> </ul> <ul id="Category_GameType" class="Blank"> </ul> <ul id="Category_GameArea" class="Blank"> </ul> <ul id="Category_GameServer" class="Blank"> </ul></div><script language="javascript" type="text/javascript" id="commonjs">Array.prototype.S = String.fromCharCode(2);Array.prototype.in_array = function(e){ var re = new RegExp(this.S+e+this.S); return re.test(this.S+this.join(this.S)+this.S);}function DataContent(){  this.Parent;  // Parent Tags this.ParentID; this.Children;  // Children Tags this.ChildrenID;}function DataServer(){ this.mList = new Array(); this.ListCount = function(){return this.mList.length;} this.GetListObj = function(n) {  if (n<this.ListCount()) return this.mList[n];  return null; } this.Add = function(sParent,sParentID,sChildren,sChildrenID) {  obj = new DataContent();  obj.Parent  = sParent;  obj.ParentID  = sParentID;  obj.Children = sChildren;  obj.ChildrenID = sChildrenID;  this.mList[this.ListCount()] = obj; }}function getTriggerNode(e) { return (document.all)?event.srcElement:e.target;}function getObject(objID){ return document.getElementById(objID);}function CreateList(objName,objData,objSelected){ var listBox = getObject(objName[0]); if(!listBox) return; var strOutput = ""; var liClass = ""; var id = 0; var op_txt = new Array(); var op_val = new Array(); var sub_val = new Array(); if (objSelected[0]) {  for(i=0;i<objData.ListCount();i++)   if(objData.GetListObj(i).ParentID==objSelected[0])   {    id = i;    break;   }  if(i==objData.ListCount()){   listBox.innerHTML="";   listBox.className="Blank";   return false;  } } if(objName[1])  for(i=0;i<objName[1].ListCount();sub_val.push(objName[1].GetListObj(i++).ParentID)); tmpobj = objData.GetListObj(id); if (tmpobj.Children.length==0) {  for(i=0;i<objData.ListCount();op_txt.push(objData.GetListObj(i).Parent),op_val.push(objData.GetListObj(i++).ParentID)); } else {  op_txt = tmpobj.Children;  op_val = tmpobj.ChildrenID; } for(i=0;i<op_txt.length;i++) {  if(sub_val.in_array(op_val[i]))   liClass = "IsParent";  if(op_val[i] == objSelected[1]){   liClass += " Selected";  }  strOutput += '<li id="'+objName[0]+'__'+op_val[i]+'" class="'+liClass+'">'+op_txt[i]+'</li>';  liClass = ''; } listBox.innerHTML = strOutput; strOutput = ""; listBox.className="";}function changeCategoryStyle(ulID,liCurr){ if(lastSelectItem[ulID]){  lastSelectItem[ulID].className=lastSelectItem[ulID].className.replace("Selected","").replace(//s+$/,""); } liCurr.className += " Selected"; lastSelectItem[ulID] = liCurr;}function changeCategory(evnt){ var obj = getTriggerNode(evnt); var obj2 = obj; if(obj2.nodeName=="DIV") return (0); if(obj.nodeName != "LI")  obj = obj.parentNode; while(obj2.nodeName != "UL")  obj2 = obj2.parentNode; if(obj.nodeName != "LI") return; changeCategoryStyle(obj2.id,obj); var parentID = (obj.id).split("__")[1]; switch(obj2.id) {  case itemtype:  break;  case gametype:   CreateList([gamearea,gameserverData],gameareaData,[parentID,0]);  break;  case gamearea:   CreateList([gameserver,],gameserverData,[parentID,0]);  break; }}var cselect = "CategorySelector";var itemtype = "Category_ItemType";var gametype = "Category_GameType";var gamearea = "Category_GameArea";var gameserver = "Category_GameServer";var lastSelectItem = {itemtype:new Object(),gametype:new Object(),gamearea:new Object(),gameserver:new Object()};var itemtypeData = new DataServer();itemtypeData.Add("武器",1,[],[]);itemtypeData.Add("防具",2,[],[]);var gametypeData = new DataServer();gametypeData.Add("魔力宝贝",1,[],[]);gametypeData.Add("仙境传说",2,[],[]);var gameareaData = new DataServer();gameareaData.Add("魔力宝贝",1,["天歇","牧羊"],[1,2]);gameareaData.Add("仙境传说",2,["上海","北京"],[3,4]);var gameserverData = new DataServer();gameserverData.Add("天歇",1,["平顶","山顶"],[1,2]);gameserverData.Add("牧羊",2,["平顶2","山顶2"],[3,4]);//gameserverData.Add("上海",3,["sfdsadfas","sdf"],[5,6]);gameserverData.Add("北京",4,["asdf","asdff"],[7,8]);CreateList([itemtype,],itemtypeData,[0,0]);CreateList([gametype,gameareaData],gametypeData,[0,0]);getObject(cselect).onclick = changeCategory;</script></body></html>

希望本文所述对大家的javascript程序设计有所帮助。

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