C#生成JSON数据格式的函数
使用说明：
对List<类> 集合使用的方法：
List<TBL_CODE_MZ> objList = objAction.GetCODE_MByList(objTbl);
string JsonSource = JSONHelper.ToJSON(objList); //当前页记录转成JSON格式
但有个问题：
日期型数据谁转换成：@123456789@这样的数据！？？？不知道谁碰到过没有！！！！
对数据集的使用如：DataSet,DataTable
JSONHelper jsonHelp = new JSONHelper();
jsonHelp.success = true;
jsonHelp.totlalCount = getPrjListCount();
foreach (DataRow dr in dsResult.Tables[0].Rows)
{
jsonHelp.AddItem("PRJ_ID", dr["PRJ_ID"].ToString());
jsonHelp.AddItem("PRJ_NAME", dr["PRJ_NAME"].ToString());
jsonHelp.AddItem("DEP_ID", dr["DEP_ID"].ToString());
jsonHelp.AddItem("PRJ_MANID", dr["PRJ_MANID"].ToString());
jsonHelp.AddItem("PRJ_STATE", dr["PRJ_STATE"].ToString());
if (dr["PRJ_STARTDATE"] != DBNull.Value)
{
jsonHelp.AddItem("PRJ_STARTDATE", Convert.ToDateTime(dr["PRJ_STARTDATE"]).ToString("yyyy/MM/dd"));
}
else
{
jsonHelp.AddItem("PRJ_STARTDATE", string.Empty);
}
if (dr["PRJ_ENDDATE"] != DBNull.Value)
{
jsonHelp.AddItem("PRJ_ENDDATE", Convert.ToDateTime(dr["PRJ_ENDDATE"]).ToString("yyyy/MM/dd"));
}
else
{
jsonHelp.AddItem("PRJ_ENDDATE", string.Empty);
}
jsonHelp.AddItem("PRJ_MEMO", dr["PRJ_MEMO"].ToString());
jsonHelp.AddItem("CODE_NAME", dr["CODE_NAME"].ToString());
jsonHelp.AddItem("DEP_NAME", dr["DEP_NAME"].ToString());
jsonHelp.AddItem("USER_NAME", dr["USER_NAME"].ToString());
jsonHelp.ItemOk();
}
string strResult = jsonHelp.ToString();
//######################JSONHelp.cs源码######################################//
using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.Web.Script.Serialization;
namespace framework.common
{
/**//// <summary>
/// JSONHelper 的摘要说明
/// </summary>
public class JSONHelper
{
//对应JSON的singleInfo成员
public string singleInfo = string.Empty;
protected string _error = string.Empty;
protected bool _success = true;
protected long _totalCount = 0;
protected System.Collections.ArrayList arrData = new ArrayList();
public JSONHelper()
{
}
public static string ToJSON(object obj)
{
JavaScriptSerializer serializer = new JavaScriptSerializer();
return serializer.Serialize(obj);
}
public static string ToJSON(object obj, int recursionDepth)
{
JavaScriptSerializer serializer = new JavaScriptSerializer();
serializer.RecursionLimit = recursionDepth;
return serializer.Serialize(obj);
}
//对应于JSON的success成员
设置success为TURE，代表成功#region 设置success为TURE，代表成功
public bool success
{
get
{
return _success;
}
set
{
//如设置为true则清空error
if (success) _error = string.Empty;
_success = value;
}
}
#endregion
//对应于JSON的error成员
public string error
{
get
{
return _error;
}
set
{
//如设置error，则自动设置success为false
if (value != "") _success = false;
_error = value;
}
}
public long totlalCount
{
get { return _totalCount; }
set { _totalCount = value; }
}
//重置，每次新生成一个json对象时必须执行该方法
public void Reset()
{
_success = true;
_error = string.Empty;
singleInfo = string.Empty;
arrData.Clear();
}
#region
public void AddItem(string name, string value)
{
arrData.Add(""" + name + "":" + """ + value + """);
}
#endregion
public void ItemOk()
{
arrData.Add("<BR>");
}
//序列化JSON对象，得到返回的JSON代码
public override string ToString()
{
StringBuilder sb = new StringBuilder();
sb.Append("{");
sb.Append("totalCount:" + totlalCount.ToString() + ",");
sb.Append("success:" + _success.ToString().ToLower() + ",");
sb.Append("error:"" + _error.Replace(""", "\"") + "",");
sb.Append("singleInfo:"" + singleInfo.Replace(""", "\"") + "",");
sb.Append("data:[");
int index = 0;
sb.Append("{");
if (arrData.Count <= 0)
{
sb.Append("}]");
}
else
{
foreach (string val in arrData)
{
index++;
if (val != "<BR>")
{
sb.Append(val + ",");
}
else
{
sb = sb.Replace(",", "", sb.Length - 1, 1);
sb.Append("},");
if (index < arrData.Count)
{
sb.Append("{");
}
}
}
sb = sb.Replace(",", "", sb.Length - 1, 1);
sb.Append("]");
}
sb.Append("}");
return sb.ToString();
}
}
}