___树形菜单Ztree.js显示.

----视图
@{
Layout = null;
}

<!DOCTYPE html>
<HTML>
<HEAD>
<TITLE> ZTREE DEMO - beforeEditName / beforeRemove / onRemove / beforeRename / onRename</TITLE>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link href="~/Content/zTree-zTree_v3-master/zTree_v3/css/demo.css" rel="stylesheet" />
<link href="~/Content/zTree-zTree_v3-master/zTree_v3/css/zTreeStyle/zTreeStyle.css" rel="stylesheet" />
<script src="~/Content/zTree-zTree_v3-master/zTree_v3/js/jquery-1.4.4.min.js"></script>

<SCRIPT type="text/javascript">
<!--
var setting = {
view: {
addHoverDom: addHoverDom,
removeHoverDom: removeHoverDom,
selectedMulti: false
},
edit: {
enable: true,

//给节点额外增加属性来控制“重命名”、“删除”图标的显示或隐藏

showRenameBtn: showRenameBtn,
showRemoveBtn: showRemoveBtn
},
data: {
simpleData: {
enable: true
}
},
callback: {
beforeDrag: beforeDrag,
beforeEditName: beforeEditName,
beforeRemove: beforeRemove,
beforeRename: beforeRename,
onRemove: onRemove,
onRename: onRename
}
};

var zNodes = [

//给节点额外增加属性来控制“重命名”、“删除”图标的显示或隐藏

{ id: 1, pId: 0, name: "父节点 1", open: true, noRemoveBtn: true, noEditBtn: true },
{ id: 11, pId: 1, name: "叶子节点 1-1", noRemoveBtn: true, noEditBtn: true },
{ id: 12, pId: 1, name: "叶子节点 1-2" },
{ id: 13, pId: 1, name: "叶子节点 1-3" },
{ id: 2, pId: 0, name: "父节点 2", open: true },
{ id: 21, pId: 2, name: "叶子节点 2-1" },
{ id: 22, pId: 2, name: "叶子节点 2-2" },
{ id: 23, pId: 2, name: "叶子节点 2-3" },
{ id: 3, pId: 0, name: "父节点 3", open: true },
{ id: 31, pId: 3, name: "叶子节点 3-1" },
{ id: 32, pId: 3, name: "叶子节点 3-2" },
{ id: 33, pId: 3, name: "叶子节点 3-3" }
];
var log, className = "dark";
function beforeDrag(treeId, treeNodes) {
return false;
}
function beforeEditName(treeId, treeNode) {
className = (className === "dark" ? "" : "dark");
showLog("[ " + getTime() + " beforeEditName ]     " + treeNode.name);
var zTree = $.fn.zTree.getZTreeObj("treeDemo");
zTree.selectNode(treeNode);
return confirm("进入节点 -- " + treeNode.name + " 的编辑状态吗？");
}
function beforeRemove(treeId, treeNode) {
className = (className === "dark" ? "" : "dark");
showLog("[ " + getTime() + " beforeRemove ]     " + treeNode.name);
var zTree = $.fn.zTree.getZTreeObj("treeDemo");
zTree.selectNode(treeNode);
return confirm("确认删除节点 -- " + treeNode.name + " 吗？");
}
function onRemove(e, treeId, treeNode) {
showLog("[ " + getTime() + " onRemove ]     " + treeNode.name);
}
function beforeRename(treeId, treeNode, newName) {
className = (className === "dark" ? "" : "dark");
showLog("[ " + getTime() + " beforeRename ]     " + treeNode.name);
if (newName.length == 0) {
alert("节点名称不能为空.");
var zTree = $.fn.zTree.getZTreeObj("treeDemo");
setTimeout(function () { zTree.editName(treeNode) }, 10);
return false;
}
return true;
}
function onRename(e, treeId, treeNode) {
showLog("[ " + getTime() + " onRename ]     " + treeNode.name);
}
function showLog(str) {
if (!log) log = $("#log");
log.append("<li class='" + className + "'>" + str + "</li>");
if (log.children("li").length > 8) {
log.get(0).removeChild(log.children("li")[0]);
}
}
function getTime() {
var now = new Date(),
h = now.getHours(),
m = now.getMinutes(),
s = now.getSeconds(),
ms = now.getMilliseconds();
return (h + ":" + m + ":" + s + " " + ms);
}

//是否显示编辑按钮
function showRenameBtn(treeId, treeNode) {
//获取节点所配置的noEditBtn属性值
if (treeNode.noEditBtn != undefined && treeNode.noEditBtn) {
return false;
} else {
return true;
}
}
//是否显示删除按钮
function showRemoveBtn(treeId, treeNode) {
//获取节点所配置的noRemoveBtn属性值
if (treeNode.noRemoveBtn != undefined && treeNode.noRemoveBtn) {
return false;
} else {
return true;
}
}

var newCount = 1;
function addHoverDom(treeId, treeNode) {

//在addHoverDom中判断第0级的节点不要显示“新增”按钮

if (treeNode.level === 0) {
return false;
} else {

//给节点添加"新增"按钮

var sObj = $("#" + treeNode.tId + "_span");
if (treeNode.editNameFlag || $("#addBtn_" + treeNode.id).length > 0) return;
var addStr = "<span class='button add' id='addBtn_" + treeNode.id
+ "' title='add node' onfocus='this.blur();'></span>";
sObj.after(addStr);
var btn = $("#addBtn_" + treeNode.id);
if (btn) btn.bind("click", function () {
var zTree = $.fn.zTree.getZTreeObj("treeDemo");
zTree.addNodes(treeNode, { id: (100 + newCount), pId: treeNode.id, name: "new node" + (newCount++) });
return false;
});
}

};
function removeHoverDom(treeId, treeNode) {
$("#addBtn_" + treeNode.id).unbind().remove();
};
function selectAll() {
var zTree = $.fn.zTree.getZTreeObj("treeDemo");
zTree.setting.edit.editNameSelectAll = $("#selectAll").attr("checked");
}

$(document).ready(function () {
$.fn.zTree.init($("#treeDemo"), setting, zNodes);
$("#selectAll").bind("click", selectAll);
});
//-->
</SCRIPT>
<style type="text/css">
.ztree li span.button.add {
margin-left: 2px;
margin-right: -1px;
background-position: -144px 0;
vertical-align: top;
*vertical-align: middle;
}
</style>
</HEAD>