zTree实现可搜索功能（升级版）
内容导读
互联网集市收集整理的这篇技术教程文章主要介绍了zTree实现可搜索功能（升级版），小编现在分享给大家，供广大互联网技能从业者学习和参考。文章包含5285字，纯文字阅读大概需要8分钟。
内容图文
1、问题背景（1）生成zTree
（2）点击节点选中并给输入框赋值
（3）输入某个字符，树节点含有该字符被选中，颜色发生变化
2、实现源码
<!DOCTYPE html>
<html>
<head>
<title>zTree具有搜索功能</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link rel="stylesheet" href="../../../css/demo.css" type="text/css">
<link rel="stylesheet" href="../../../css/zTreeStyle/zTreeStyle.css" type="text/css">
<script type="text/javascript" src="../../../js/jquery-1.4.4.min.js"></script>
<script type="text/javascript" src="../../../js/jquery.ztree.core.js"></script>
<script type="text/javascript">
var setting = {
view: {
showIcon:false,
showTitle: false,
showLine: true,
fontCss: setFontCss
},
callback: {
onClick: zTreeOnClick
}
};
var zNodes =[
{id:"0",name:"树", open:true,
children: [
{id:"01",name:"灌木",open:true,
children: [
{id:"010",name:"银杏"},
{id:"011",name:"桑树"},
{id:"012",name:"红树"},
{id:"013",name:"榕树"}
]},
{id:"02",name:"乔木",open:true,
children: [
{id:"020",name:"杨树"},
{id:"021",name:"槐树"},
{id:"022",name:"杉木"},
{id:"023",name:"松树"}
]}
]}
];
$(document).ready(function(){
$.fn.zTree.init($("#tree"), setting, zNodes);
$("#dataBtn").keyup(function(){
var dt = $(this).val();
setColor('tree','name',dt);
});
});
function setColor(id,key,value){
treeId = id;
if(value != "")
{
var treeObj = $.fn.zTree.getZTreeObj(treeId);
nodeList = treeObj.getNodesByParamFuzzy(key, value);
if(nodeList && nodeList.length>0)
{
updateNodes(true,nodeList,treeId);
}
}
}
function updateNodes(highlight,nodeList,treeId) {
var treeObj = $.fn.zTree.getZTreeObj(treeId);
for( var i=0; i<nodeList.length;i++)
{
nodeList[i].highlight = highlight;
treeObj.updateNode(nodeList[i]);
}
}
function setFontCss(treeId, treeNode)
{
return (!!treeNode.highlight) ? {color:"#0000FF", "font-weight":"bold","font-size":"14px"} : {color:"#333", "font-weight":"normal"};
};
function zTreeOnClick(event, treeId, treeNode) {
var zTree = $.fn.zTree.getZTreeObj("tree")
var views = zTree.setting.view;
$("#dataBtn").val(treeNode.name);
views["fontCss"] = reSetFontCss;
};
function reSetFontCss(treeId, treeNode)
{
return (!treeNode.click)?{color:"#000000", "font-weight":"normal"}:{};
}
</script>
</head>
<body style="padding: 20px;">
<p>
<input type="text" id="dataBtn" style="width: 227px;"/>
</p>
<p class="content_wrap">
<p class="zTreeDemoBackground left">
<ul id="tree" class="ztree"></ul>
</p>
</p>
</body>
</html>
3、实现结果
（1）初始化时
（2）点击节点
（3）输入某个字符
4、问题分析
（1）缺陷
输入框输入某个字符，节点颜色发生变化，但是无法重置（恢复原来的颜色）
5、修复bug
<!DOCTYPE html>
<html>
<head>
<title>zTree具有搜索功能</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link rel="stylesheet" href="../../../css/demo.css" type="text/css">
<link rel="stylesheet" href="../../../css/zTreeStyle/zTreeStyle.css" type="text/css">
<script type="text/javascript" src="../../../js/jquery-1.4.4.min.js"></script>
<script type="text/javascript" src="../../../js/jquery.ztree.core.js"></script>
<script type="text/javascript">
var setting = {
view: {
showIcon:false,
showTitle: false,
showLine: true,
fontCss: setFontCss
},
callback: {
onClick: zTreeOnClick
}
};
var zNodes =[
{id:"0",name:"树", open:true,
children: [
{id:"01",name:"灌木",open:true,
children: [
{id:"010",name:"银杏"},
{id:"011",name:"桑树"},
{id:"012",name:"红树"},
{id:"013",name:"榕树"}
]},
{id:"02",name:"乔木",open:true,
children: [
{id:"020",name:"杨树"},
{id:"021",name:"槐树"},
{id:"022",name:"杉木"},
{id:"023",name:"松树"}
]}
]}
];
$(document).ready(function(){
$.fn.zTree.init($("#tree"), setting, zNodes);
$("#dataBtn").keyup(function(){
var zTree = $.fn.zTree.getZTreeObj("tree");
var views = zTree.setting.view;
views["fontCss"] = setFontCss;
var dt = $(this).val();
setColor('tree','name',dt);
});
});
function setColor(id,key,value){
treeId = id;
if(value != "")
{
var treeObj = $.fn.zTree.getZTreeObj(treeId);
nodeList = treeObj.getNodesByParamFuzzy(key, value);
if(nodeList && nodeList.length>0)
{
updateNodes(true,nodeList,treeId);
}
}
else
{
var treeObj = $.fn.zTree.getZTreeObj(treeId);
var views = treeObj.setting.view;
views["fontCss"] = reSetFontCss;
treeObj.refresh();
}
}
function updateNodes(highlight,nodeList,treeId) {
var treeObj = $.fn.zTree.getZTreeObj(treeId);
for( var i=0; i<nodeList.length;i++)
{
nodeList[i].highlight = highlight;
treeObj.updateNode(nodeList[i]);
}
}
function setFontCss(treeId, treeNode)
{
return (!!treeNode.highlight) ? {color:"#0000FF", "font-weight":"bold","font-size":"14px"} : {color:"#000", "font-weight":"normal"};
};
function zTreeOnClick(event, treeId, treeNode) {
var zTree = $.fn.zTree.getZTreeObj("tree");
var views = zTree.setting.view;
$("#dataBtn").val(treeNode.name);
views["fontCss"] = reSetFontCss;
zTree.refresh();
};
function reSetFontCss(treeId, treeNode)
{
return (!treeNode.highlight)?{color:"#000000", "font-weight":"normal"}:{};
}
</script>
</head>
<body style="padding: 20px;">
<p>
<input type="text" id="dataBtn" style="width: 227px;"/>
</p>
<p class="content_wrap">
<p class="zTreeDemoBackground left">
<ul id="tree" class="ztree"></ul>
</p>
</p>
</body>
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