双树 节点 C# net Ztree linqtosql 源码
架构设计 模块架构
结果 操作左边的树异步刷新右边的树 
从中需要用到
JS
ajax
ztree
js调用C#后台方法
递归
JS回调函数
linqtosql
C#基础知识
注意事项 ：文章的ztree使用的标准对象模式
使用ztree时 有两种方式 都对数据库的设计有很大的要求
主要要有ID 和 ParentID
使用简单对象模式时 需要注意还要加一个ISparent 字段 判断是否为节点
一下是使用标准对象模式的源码
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using MS.DAL.DBML;
using MS.DAL.LINQ_DAL.Common;
namespace MS.Web.MS_Styseting.MS_Organize
{
public class Company_childrenweb
{
private List _children;
public List children
{
get { return _children; }
set { _children = value; }
}
private string _cId;
public string cId
{
get { return _cId; }
set { _cId = value; }
}
private string _cName;
public string cName
{
get { return _cName; }
set { _cName = value; }
}
private string _cParentId;
public string cParentId
{
get { return _cParentId; }
set { _cParentId = value; }
}
private string _cUrl;
public string cUrl
{
get { return _cUrl; }
set { _cUrl = value; }
}
private string _cParentrightID;
public string cParentrightID
{
get { return _cParentrightID; }
set { _cParentrightID = value; }
}
}
}
后台
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.UI;
using System.Web.UI.WebControls;
using MainloserTree.DAL;
namespace MainloserTree.Sys
{
public partial class MailLoserZtreeView : System.Web.UI.Page
{
private static string connectionString = ConfigurationManager.ConnectionStrings["Maillosertree"].ToString();//连接数据库的
public string Sys_Organizeid = "97fb8de4-56e7-457b-856d-388ba91ea5e0";
public int Cid = 0;
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
}
}
//XML里面的一个方法，在jquery用ajax方法调用； ok01
///
/// 获取所有的一级节点
///
/// 所有的节点信息
[WebMethod]
public static List FindAll()
{
//实例化类
MailLoserZtreeView mS_OrganZtreeJ = new MailLoserZtreeView();
string sqlText = "select * from Sys_Organize where ParentID=0";
//定义实体类列表
List list = new List();
//将所有的一级节点放到list中
list = mS_OrganZtreeJ.GetParentID(sqlText);
// mS_OrganZtreeJ.GetChilds(ref list);
return list;
}
//XML里面的一个方法，在jquery用ajax方法调用； OK0201
///
/// 获取所有的一级节点 Q群196997099
///
/// 所有的节点信息
///
[WebMethod]
public static List FindAllCompanyK(string Sys_Organizeid)
{
//实例化类 string Sys_Organizeid
if (Sys_Organizeid == null)
{
Sys_Organizeid = "97fb8de4-56e7-457b-856d-388ba91ea5e0";
}
MailLoserZtreeView mS_OrganZtreeJ = new MailLoserZtreeView();
//表连接 Q群196997099
string sqlText =
String.Format(@"select * from dbo.Company c join Sys_Organize s on c.Organizeid=s.ID where s.ID='{0}'",
Sys_Organizeid);
//定义实体类列表
List listCompany = new List();
//将所有的一级节点放到list中
listCompany = mS_OrganZtreeJ.GetCompanyParentID(sqlText); // OK0202
mS_OrganZtreeJ.GetChildslistCompany(ref listCompany); // OK0204
return listCompany;
}
///
///获所有的一级节点
///
///
/// GetParentID(string sql)
{
List user = new List();
SqlDataReader reader = null;
reader = ExecuteReader(sql);
while (reader.Read())
{
user.Add(ObjToListC(reader));
}
return user;
}
///
///获所有的一级节点 ok0202
///
///
/// GetCompanyParentID(string sql)
{
List user = new List();
SqlDataReader reader = null;
reader = ExecuteReader(sql);
while (reader.Read())
{
user.Add(ObjToListKCompany(reader)); //ok0203
}
return user;
}
///
/// 将获取的所有的子节点放到children中
///
/// 按引用传值,当控制权传递回调用方法时，在方法中对参数所做的任何更改都将反映在该变量中
public void GetChilds(ref List list)
{
foreach (Sys_Organize modelChilds in list)
{
//通过上级ID获取子级，然后添加到lstModel中
List lstModel = GetChildsID(modelChilds.ID);
if (lstModel.Count > 0)
{
modelChilds.ID = lstModel[0].ID;
modelChilds.ParentID = lstModel[0].ParentID;
modelChilds.Remark = lstModel[0].Remark;
modelChilds.OrganizeCode = lstModel[0].OrganizeCode;
modelChilds.OrganizeName = lstModel[0].OrganizeName;
// modelChilds.children = lstModel;
// model.;osmf = lstModel;
//采用递归的形式
GetChilds(ref lstModel);
}
}
}
///
/// 将获取的所有的子节点放到children中 ok0204
///
/// 按引用传值,当控制权传递回调用方法时，在方法中对参数所做的任何更改都将反映在该变量中
public void GetChildslistCompany(ref List list)
{
foreach (Company_childrenweb modelChilds in list)
{
//通过上级ID获取子级，然后添加到lstModel中 Q群196997099
List lstModelCompany = GetChildsIDCompany(modelChilds.cId);
if (lstModelCompany.Count > 0)
{
modelChilds.children = lstModelCompany; //这个就是树的关键难点 这个决定了与夫节点的关系 加一个list到对象里去
//采用递归的形式
GetChildslistCompany(ref lstModelCompany);
}
}
}
///
/// 根据父节点的id获取子节点
///
/// 父节点id
/// 所有的子节点id
public List GetChildsIDCompany(string dParentId)
{
//定义一个列
List result = new List();
SqlDataReader sqlReader = null;
// var ObjToListCCompanybbb;
string strSql = String.Format(@"select * from Company where ParentrightID='{0}'", dParentId);
sqlReader = ExecuteReader(strSql);
while (sqlReader.Read())
{
result.Add(ObjToListKCompany(sqlReader));
}
sqlReader.Close();
return result;
}
///
/// 根据父节点的id获取子节点
///
/// 父节点id
/// 所有的子节点id
public List GetChildsID(string dParentId)
{
//定义一个列
List result = new List();
SqlDataReader sqlReader = null;
string strSql = String.Format(@"select * from Sys_Organize where ID='{0}'", dParentId);
sqlReader = ExecuteReader(strSql);
while (sqlReader.Read())
{
result.Add(ObjToListC(sqlReader));
}
sqlReader.Close();
return result;
}
///
/// 解析查询结果
///
///
/// 父节点id，子节点id，子节点名字
private Sys_Organize ObjToListC(SqlDataReader reader)
{
Sys_Organize model = new Sys_Organize();
if (reader != null)
{
//子节点id
if (reader["ParentID"] != null && reader["ParentID"].ToString() != "")
{
model.ParentID = int.Parse(
reader["parentID"].ToString()
)
;
}
//节点名字
if (reader["OrganizeName"] != null && reader["OrganizeName"].ToString() != "")
{
model.OrganizeName = reader["OrganizeName"].ToString();
}
//父节点id
if (reader["ParentID"] != null && reader["ParentID"].ToString() != "")
{
model.ParentID = int.Parse(
reader["ParentID"].ToString()
);
}
//地址
if (reader["Remark"] != null && reader["Remark"].ToString() != "")
{
model.Remark = reader["Remark"].ToString();
}
//code
if (reader["OrganizeCode"] != null && reader["OrganizeCode"].ToString() != "")
{
model.OrganizeCode = reader["OrganizeCode"].ToString();
}
//节点名字
if (reader["ID"] != null && reader["ID"].ToString() != "")
{
model.ID = reader["ID"].ToString();
}
//节点名字
if (reader["Sort"] != null && reader["Sort"].ToString() != "")
{
model.Sort = int.Parse(
reader["Sort"].ToString());
}
}
return model;
}
///
/// 解析查询结果
///
///
/// 父节点id，子节点id，子节点名字
private Company_childrenweb ObjToListKCompany(SqlDataReader reader)
{
Company_childrenweb model = new Company_childrenweb();
if (reader != null)
{
//子节点id
if (reader["ID"] != null && reader["ID"].ToString() != "")
{
model.cId = reader["ID"].ToString();
// model.ID = int.Parse(reader["ID"].ToString());
}
//节点名字
if (reader["CompanyName"] != null && reader["CompanyName"].ToString() != "")
{
model.cName = reader["CompanyName"].ToString();
}
//父节点id
if (reader["ParentrightID"] != null && reader["ParentrightID"].ToString() != "")
{
model.cParentId = reader["ParentrightID"].ToString();
}
//id
if (reader["Organizeid"] != null && reader["Organizeid"].ToString() != "")
{
model.cUrl = reader["Organizeid"].ToString();
}
}
return model;
}
///
/// 解析查询结果
///
///
/// 父节点id，子节点id，子节点名字
private static Company ObjToListCCompany(SqlDataReader reader)
{
Company model = new Company();
if (reader != null)
{
//子节点id
if (reader["ID"] != null && reader["ID"].ToString() != "")
{
model.ID = int.Parse(reader["ID"].ToString());
}
//节点名字
if (reader["CompanyName"] != null && reader["CompanyName"].ToString() != "")
{
model.CompanyName = reader["CompanyName"].ToString();
}
//父节点id
if (reader["Levelid"] != null && reader["Levelid"].ToString() != "")
{
model.Levelid = int.Parse(reader["Levelid"].ToString());
}
//id
if (reader["categoryid"] != null && reader["categoryid"].ToString() != "")
{
model.categoryid = reader["categoryid"].ToString();
}
//code
if (reader["companytype"] != null && reader["companytype"].ToString() != "")
{
model.companytype = reader["companytype"].ToString();
}
//节点名字
if (reader["Organizeid"] != null && reader["Organizeid"].ToString() != "")
{
model.Organizeid = reader["Organizeid"].ToString();
}
//节点名字
if (reader["CompanyID"] != null && reader["CompanyID"].ToString() != "")
{
model.CompanyID = reader["CompanyID"].ToString();
}
//节点名字
if (reader["ParentrightID"] != null && reader["ParentrightID"].ToString() != "")
{
model.ParentrightID = int.Parse(reader["ParentrightID"].ToString());
}
}
return model;
}
private static SqlDataReader ExecuteReader(string strSQL)
{
SqlConnection connection = new SqlConnection(connectionString);
SqlCommand cmd = new SqlCommand(strSQL, connection);
try
{
connection.Open();
SqlDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
return myReader;
}
catch (System.Data.SqlClient.SqlException e)
{
throw e;
}
}
}
}
前台
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="MailLoserZtreeView.aspx.cs" Inherits="MainloserTree.Sys.MailLoserZtreeView" %>
MS_OrganZtreeJ