看到园友发表了一篇关于JS树的文章，看了之后，觉得应该可以精简不少代码，
想到了以前做的项目里面用到了一个JS树，于是试着修改了一下，现把代码贴出来与大家共享，还请大家多扔砖头！
前端代码：
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1.Default" %> <!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 runat="server"> <title></title> <link href="images/Tree/Tree.css" rel="stylesheet" type="text/css" /> <style type="text/css"> #tabMenu { border: 1px solid #A3C0E8; position: absolute; opacity: 0.9; display: none; cursor: pointer; border-collapse: collapse; z-index:9999; background-color:#fff; } #tabMenu td { border: 1px solid #A3C0E8; height: 30px; width: 120px; text-align: center; } .righText { text-align:right; width:120px; height:30px; } #tabDepartment td { border: 1px solid #A3C0E8; } </style> <script src="js/jquery-1.11.1.js" type="text/javascript"></script> <script src="js/Tree.js" type="text/javascript"></script> <script type="text/javascript"> $(function() { reload(); var dt = document.getElementById("Tree"); dt.oncontextmenu = function() { return false; } document.onclick = function() { $("#tabMenu").css("display", "none"); } $("#tabMenu").mouseleave(function() { $(this).css("display", "none"); }); }); function reload() { $.ajax({ type: 'POST', url: "Default.aspx/GetData2", data: "{ pid: 0 }", contentType: "application/json;charset=utf-8", dataType: "json", success: function(data) { var obj = eval('(' + data.d + ')'); if (obj) { var tree = new treeview("treeview", "/Images/Tree", false, false); var dt = document.getElementById("Tree"); dt.innerHTML = ""; loopNode(obj, tree); tree.create(dt); tree.nodes.items[0].expand(); } }, error: function(r, ex) { } }); } function stopBubble(e) { if (e && e.stopPropagation) e.stopPropagation(); else window.event.cancelBubble = true; return false; } function loopNode(obj, parNode) { var nd = new node(obj.Name, obj.Name, "", obj.PID, obj.ID, false); parNode.add(nd); var len = obj.Child.length; if (len > 0) { for (var i = 0; i < len; i++) { var d = obj.Child[i]; if (d.Child && d.Child.length > 0) { loopNode(d, nd) } else { nd.add(new node(d.Name, d.Name, "", d.PID, d.ID, false)); } } } } treeview.prototype.oncontextmenu = function(sender, e) { selectedNode = sender; var ps = sender.position(e); $("#tabMenu").css({ left: ps.x, top: ps.y, display: 'block' }); return stopBubble(e); } treeview.prototype.onnodeclick = function(sender) { selectedNode = sender; return false; } </script> </head> <body> <form id="form1" runat="server"> <div id="Tree"> </div> <table id="tabMenu" border="1"> <tr> <td>添加</td> </tr> <tr> <td>修改</td> </tr> <tr> <td>删除</td> </tr> </table> </form> </body> </html>
后台代码：
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.Services; using System.Text; using Utility; using Newtonsoft.Json; namespace WebApplication1 { public partial class Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } [WebMethod] public static string GetData2(int pid) { StringBuilder sb = new StringBuilder(); List<HRDepartmentEntity> alist = Getlist(); List<HRDepartmentEntity> clist = alist.FindAll(p => p.ParentID == pid).OrderBy(q => q.DepartmentOrder).ToList(); LoopDepartment(alist, clist, sb, pid); return sb.ToString(); } [WebMethod] public static string GetData(int pid) { StringBuilder sb = new StringBuilder(); List<HRDepartmentEntity> alist = Getlist(); DepartmentSingle ds = new DepartmentSingle(); ds.Name = "Test"; LoopDepartment2(alist, ds); string str = JsonConvert.SerializeObject(ds); return str; } /// <summary> /// 得到组织架构列表 /// </summary> /// <returns></returns> private static List<HRDepartmentEntity> Getlist() { return SQLServerHelper.ExecuteDataTable("select * from HR_Department").ToList<HRDepartmentEntity>(); } private static void LoopDepartment2(List<HRDepartmentEntity> list1, DepartmentSingle ds) { List<HRDepartmentEntity> list2 = list1.FindAll(p => p.ParentID == ds.ID).OrderBy(q => q.DepartmentOrder).ToList(); if (list2.Count > 0) { ds.Child = list2.ConvertAll<DepartmentSingle>(p => new DepartmentSingle { ID = p.DepartmentID, PID = p.ParentID, Name = p.DepartmentName }); foreach (DepartmentSingle ds2 in ds.Child) { LoopDepartment2(list1, ds2); } } } private static void LoopDepartment(List<HRDepartmentEntity> alist, List<HRDepartmentEntity> clist, StringBuilder sb, int pid) { for (int i = 0; i < clist.Count; i++) { HRDepartmentEntity entity = clist[i]; int id = entity.DepartmentID; List<HRDepartmentEntity> list2 = alist.FindAll(p => p.ParentID == id).OrderBy(q => q.DepartmentOrder).ToList(); sb.Append("{" + string.Format("ID:{0},PID:{1},Name:'{2}',Order:{3},Child:", id, entity.ParentID, entity.DepartmentName, entity.DepartmentOrder) + "["); if (list2.Count > 0) { LoopDepartment(alist, list2, sb, id); } if (i < clist.Count - 1) { sb.Append("]},"); } else { sb.Append("]}"); } } } } /// <summary> /// 组织架构实体类 /// </summary> public class HRDepartmentEntity { #region 私有变量 private Int32 m_DepartmentID; private String m_DepartmentName; private Int32 m_ParentID; private String m_ParentName; private String m_DepartmentIcon; private String m_ResponsiblePerson; private String m_Tel; private String m_Email; private String m_Description; private Int32 m_DepartmentOrder; private Int32 m_IsDelete; private DateTime m_DeleteTime; #endregion # region 属性方法 public Int32 DepartmentID { get { return m_DepartmentID; } set { m_DepartmentID = value; } } public String DepartmentName { get { return m_DepartmentName; } set { m_DepartmentName = value; } } public Int32 ParentID { get { return m_ParentID; } set { m_ParentID = value; } } public String ParentName { get { return m_ParentName; } set { m_ParentName = value; } } public String DepartmentIcon { get { return m_DepartmentIcon; } set { m_DepartmentIcon = value; } } public String ResponsiblePerson { get { return m_ResponsiblePerson; } set { m_ResponsiblePerson = value; } } public String Tel { get { return m_Tel; } set { m_Tel = value; } } public String Email { get { return m_Email; } set { m_Email = value; } } public String Description { get { return m_Description; } set { m_Description = value; } } public Int32 DepartmentOrder { get { return m_DepartmentOrder; } set { m_DepartmentOrder = value; } } public Int32 IsDelete { get { return m_IsDelete; } set { m_IsDelete = value; } } public DateTime DeleteTime { get { return m_DeleteTime; } set { m_DeleteTime = value; } } #endregion } public class DepartmentSingle { public int ID; public int PID; public string Name; public List<DepartmentSingle> Child; } }
ok了~~就这些，完整源代码下载
每天进步一点点... 
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