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<HEAD>
<TITLE> ZTREE DEMO - addNodes / editName / removeNode / removeChildNodes</TITLE>
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<script type="text/javascript" src="../js/jquery-3.3.1.js"></script>
<link rel="stylesheet" href="../bower_components/ztree/css/zTreeStyle/demo.css" type="text/css">
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<script type="text/javascript" src="../bower_components/ztree/js/jquery.ztree.exedit-3.5.js"></script>
<SCRIPT type="text/javascript">
<!--
var setting = {
view: {
selectedMulti: false
},
edit: {
enable: true,
showRemoveBtn: false,
showRenameBtn: false
},
data: {
keep: {
parent:true, //zTree 的节点父节点属性锁，是否始终保持 isParent = true
leaf:true //zTree 的节点叶子节点属性锁，是否始终保持 isParent = false
},
simpleData: {
enable: true
}
},
callback: {
beforeDrag: beforeDrag,
beforeRemove: beforeRemove,
beforeRename: beforeRename,
onRemove: onRemove
}
};
var zNodes =[
{ id:1, pId:0, name:"父节点 1", open:true},
{ id:11, pId:1, name:"叶子节点 1-1"},
{ 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"}
];
function beforeDrag(treeId, treeNodes) {
return false;
}
function beforeRemove(treeId, treeNode) {
return confirm("确认删除 节点 -- " + treeNode.name + " 吗？");
}
function onRemove(e, treeId, treeNode) {
}
function beforeRename(treeId, treeNode, newName) {
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;
}
var newCount = 1;
function add(e) {
var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
isParent = e.data.isParent,
nodes = zTree.getSelectedNodes(),
treeNode = nodes[0];
if (treeNode) { //如果选中了结点是给该结点增加子结点，如果没有选中，则是给根结点添加子结点
treeNode = zTree.addNodes(treeNode, {id:(100 + newCount), pId:treeNode.id, isParent:isParent, name:"new node" + (newCount++)});
} else {
treeNode = zTree.addNodes(null, {id:(100 + newCount), pId:0, isParent:isParent, name:"new node" + (newCount++)});
}
if (treeNode) {
zTree.editName(treeNode[0]); //设置某节点进入编辑名称状态。
} else { //如果增加失败则提示
alert("叶子节点被锁定，无法增加子节点");
}
};
function edit() {
var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
nodes = zTree.getSelectedNodes(),
treeNode = nodes[0];
if (nodes.length == 0) {
alert("请先选择一个节点");
return;
}
zTree.editName(treeNode); //编辑结点名称
};
function remove(e) {
var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
nodes = zTree.getSelectedNodes(),
treeNode = nodes[0];
if (nodes.length == 0) {
alert("请先选择一个节点");
return;
}
var callbackFlag = $("#callbackTrigger").attr("checked");
zTree.removeNode(treeNode, callbackFlag); //表示执行此方法时不触发事件回调函数（依据callbackFlag）
};
function clearChildren(e) { //删除所有子结点
var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
nodes = zTree.getSelectedNodes(),
treeNode = nodes[0];
if (nodes.length == 0 || !nodes[0].isParent) {
alert("请先选择一个父节点");
return;
}
zTree.removeChildNodes(treeNode);
};
$(document).ready(function(){
$.fn.zTree.init($("#treeDemo"), setting, zNodes);
$("#addParent").bind("click", {isParent:true}, add);
$("#addLeaf").bind("click", {isParent:false}, add);
$("#edit").bind("click", edit);
$("#remove").bind("click", remove);
$("#clearChildren").bind("click", clearChildren);
});
//-->
</SCRIPT>
</HEAD>
<BODY>
<div class="content_wrap">
<div class="zTreeDemoBackground left">
<ul ></ul>
</div>
<div class="right">
<input type="checkbox" checked /> removeNode 方法是否触发 callback<br/>
[ <a >增加父节点</a> ]
[ <a >增加叶子节点</a> ]
[ <a >编辑名称</a> ]<br/>
[ <a >删除节点</a> ]
[ <a >清空子节点</a> ]<br/>
</div>
</div>
</BODY>
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