递归循环JSON-白红宇

递归循环JSON

阅读量：6140 次

发布时间：2019-06-21

本文共 1861 字，大约阅读时间需要 6 分钟。

using System;using System.Collections.Generic;using System.Linq;using System.Web;/// /// JsonHelper 的摘要说明/// 
public class JsonHelper{    ///     /// 转换JSON对象    /// 
    ///     /// 
        public static string ConvertToJson(Company company)    {        string json = "CompanyName:\"" + company.CompanyName + "\",ContactName:\"" + company.ContactName + "\",City:\"" + company.City + "\",CustomerID:\"" + company.CustomerID + "\",children:{0}";        return json;    }    ///     /// 转换JSON对象集合，包含子集，递归加载    /// 
    ///     /// 
        public static string ConvertToJson(List
    
      companyList)    {        string json = "[";        //获取第一级目录        List
     
       rootList = companyList.Where(x => string.IsNullOrEmpty(x.Pid)).ToList
      
       ();        foreach (Company root in rootList)        {            string js = ConvertToJson(root);            string children="";            children = DiGui(companyList, children, root.CustomerID);            json += "{"+string.Format(js, children) + "},";        }        if (json.LastIndexOf(",") < 1)        {            json += "]";        }        else        {            json = json.Substring(0, json.Length - 1) + "]";        }        return json.Replace(",children:[]", "");    }    /// 
           /// 递归调用添加包含子集的JSON数组    /// 
    private static string DiGui(List
       
         companyList,string children,string pid)    {        children = "[";        List
        
          childerList = companyList.Where(x => x.Pid.ToUpper() == pid.ToUpper()).ToList
         
          (); foreach (Company item in childerList) { string js = ConvertToJson(item); string cd = ""; cd = DiGui(companyList, cd, item.CustomerID); children += "{"+string.Format(js, cd) + "},"; } if (children.LastIndexOf(",") < 1) { children += "]"; } else { children = children.Substring(0, children.Length - 1) + "]"; } return children; } }