一步一步asp.net ajax类别Tree生成

!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>产品类别管理/title>
meta http-equiv="content-type" content="text/html; charset=UTF-8" />
link href="../css/demo.css" rel="stylesheet" type="text/css" />
script src="../scripts/jquery-1.6.2.min.js" type="text/javascript">/script>
script src="../scripts/miniui/miniui.js" type="text/javascript">/script>link href="../scripts/miniui/themes/default/miniui.css" rel="stylesheet" type="text/css" />
link href="../scripts/miniui/themes/icons.css" rel="stylesheet" type="text/css" />
/head>
body>
div class="mini-toolbar">
h1>产品类别管理/h1>
div class="mini-panel" title="产品类别管理" iconCls="icon-add" style="width:100%;height:500px;"
showToolbar="true" showCollapseButton="true" showFooter="true"
>
!--toolbar-->
div property="toolbar">
/div>
!--footer-->
div property="footer">
/div>
!--body-->
ul id="tree1" class="mini-tree" url="Data/GetProductInfo.ashx?method=GetProductType" style="width:100%;height:100%;padding:5px;"
showTreeIcon="true" textField="text" idField="id" contextMenu="#treeMenu"
>
/ul>
ul id="treeMenu" class="mini-menu" style="display:none;" onbeforeopen="onBeforeOpen">
!-- li name="move" iconCls="icon-move" onclick="onMoveNode">移动节点/li>-->
li class="separator">/li>
li name="addNode" onclick="onAddNode" iconCls="icon-add">插入节点/li>
li name="edit" iconCls="icon-edit" onclick="onEditNode">编辑节点/li>
li name="remove" iconCls="icon-remove" onclick="onRemoveNode">删除节点/li>
li name="cancel" iconCls="icon-cancel" onclick="onCancel">取消/li>
li class="separator">/li>
/ul>
/div>
br />br />
/div>
script type="text/javascript">
mini.parse();
var AddTpye="add";
function onCancel(e){
var tree=mini.get("tree1");
var node=tree.getSelectedNode();
tree.isExpandedNode (node);
}
function onAddBefore(e) {
AddType="before";
AddItem(e);
}
function onAddAfter(e)
{
AddType="after";
AddItem(e);
}
function AddItem(e) {
var tree = mini.get("tree1");
var node = tree.getSelectedNode();
var newNode = {id:0,text:"空",pid:node.id};
mini.prompt("请输入类别内容：", "请输入",
function (action, value) {
if (action == "ok"){
$.ajax({
url:"Data/GetProductInfo.ashx",
type:"post",
data:"method=AddProductTypetext="+value+"pid="+node.id+"IsLeaf="+tree.isLeaf(node),
success:function(msg){
if(msg){
alert("添加成功!");
TreeLoad();
// newNode.text=value;
// if(node!=null){
//
// tree.addNode(newNode, AddType, node);
// }
}
else
alert("添加失败!");
}
});
}
else {
newNode.text="空";
}
});
}
//刷新树
function TreeLoad(){
$.ajax({
url:"Data/GetProductInfo.ashx?method=GetProductType",
type:"json",
success:function(json){
var tree = mini.get("tree1");
// alert(json);
var data= eval("("+json+")");
tree.loadData(data);
}
});
}
function onAddNode(e) {
AddType="add";
AddItem(e);
}
function onEditNode(e) {
var tree = mini.get("tree1");
var node = tree.getSelectedNode();
mini.prompt("请输入类别内容：", "请输入",
function (action, value) {
if (action == "ok") {
$.ajax({
url:"Data/GetProductInfo.ashx",
type:"post",
data:"method=SaveProductTypeid="+node.id+"text="+value+"pid="+node.pid+"IsLeaf="+tree.isLeaf(node),
success:function(msg){
if(msg){
alert("保存成功!");
tree.setNodeText(node,value);
//TreeLoad();
}
else
alert("保存失败!");
}
});
}
});
}
function onRemoveNode(e) {
var tree = mini.get("tree1");
var node = tree.getSelectedNode();
if (node) {
if (confirm("确定删除选中节点?")) {
//这里提交到服务器
$.ajax({
url:"Data/GetProductInfo.ashx",
type:"post",
data:"method=RemoveProductTypeid="+node.id,
success:function(msg){
if(msg){
tree.removeNode(node);
alert("删除成功!");
}
else{
alert("删除失败!");
}
}
});
}
}
}
function onBeforeOpen(e) {
var menu = e.sender;
var tree = mini.get("tree1");
var node = tree.getSelectedNode();
// if (node node.id == "-1") { //如果根节点(总根目录,那么阻止菜单显示)
// e.cancel = true;
// //阻止浏览器默认右键菜单
// e.htmlEvent.preventDefault();
// return;
// }
////////////////////////////////
var editItem = mini.getbyName("edit", menu);
var removeItem = mini.getbyName("remove", menu);
var addNodeItem=mini.getbyName("addNode",menu);
//var moveItem=mini.getbyName("move",menu);
editItem.show();
removeItem.show();
addNodeItem.show();
if (node.id == "-1") {//总根目录
removeItem.hide();
// moveItem.hide();
}
}
/script>
/body>
/html>

/// summary>
/// 工艺品类别树转化为json格式
/// /summary>
/// returns>/returns>
public string craftTypeTreeToJson()
{
//传递的json格式
IEnumerablecrafttype> craftTypeList = new crafttypeDAL().ListAll();
StringBuilder sb = new StringBuilder("[");
foreach (crafttype root in craftTypeList)
{
if (root.Belongsid == -1)
{
sb.Append("{id:\"" + root.ID + "\",text:\"" + root.Name + "\"");
sb.Append(",pid:\"-1\"");//添加父节点
sb.Append(",expanded:\"false\"");
if (root.IsLeaf == "0")//如果是不是叶子节点,那么,就要递归添加children:[{xxx},内容
{
sb.Append(",children:");
GetLeafTree(ref sb, (int)root.ID, craftTypeList);//递归追加叶子
}
sb.Append("},");
}
}
sb.Remove(sb.Length - 1, 1); //去除掉最后一个多余的,
sb.Append("]");
return Common.FormatToJson.MiniUiToJsonForTree(sb.ToString(), "工艺品类别");
}
/// summary>
/// 递归获得父级ID下的所有类别json数据
/// /summary>
/// param name="sb">json字符串/param>
/// param name="parentID">父级id/param>
/// param name="craftTypeList">类别信息集合/param>
public void GetLeafTree(ref StringBuilder sb,int parentID,IEnumerablecrafttype> craftTypeList)
{
sb.Append("[");
foreach (crafttype leaf in craftTypeList)
{
if (leaf.Belongsid == parentID) //根据双亲节点查找叶子
{
sb.Append("{id:\"" + leaf.ID + "\",text:\"" + leaf.Name + "\"");
sb.Append(",pid:\"" + parentID + "\"");//添加父节点
sb.Append(",expanded:\"false\"");
if (leaf.IsLeaf == "0")//如果是不是叶子节点,那么,就要递归添加children:[{xxx},内容
{
sb.Append(",children:");
GetLeafTree(ref sb,(int)leaf.ID, craftTypeList);//递归追加叶子
}
sb.Append("},");
}
}
sb.Remove(sb.Length - 1, 1); //去除掉最后一个多余的,
sb.Append("]");
}