当前文件： ExtjsHotelManage/BLL/GridJSONHelper.cs[3K，2009-6-12 11:42:12]，打开代码结构图

		            
  1using System;
  2using System.Collections;
  3using System.Collections.Generic;
  4using System.Text;
  5using System.Web.Script.Serialization;
  6using System.Runtime.Serialization;
  7
  8
  9/**//// <summary>
 10/// JSONHelper 的摘要说明
 11/// </summary>
 12public class GridJSONHelper
 13...{
 14    //对应JSON的singleInfo成员
 15    public string singleInfo = string.Empty;
 16    protected string _error = string.Empty;
 17    protected bool _success = true;
 18    protected long _totalCount = 0;
 19    protected System.Collections.ArrayList arrData = new ArrayList();
 20    protected System.Collections.ArrayList arrDataItem = new ArrayList();
 21
 22
 23    public GridJSONHelper()
 24    ...{
 25
 26    }
 27
 28    //public static string ToJSON(object obj)
 29    //{
 30    //    JavaScriptSerializer serializer = new JavaScriptSerializer();
 31    //    return serializer.Serialize(obj);
 32    //}
 33
 34    //public static string ToJSON(object obj, int recursionDepth)
 35    //{
 36    //    JavaScriptSerializer serializer = new JavaScriptSerializer();
 37    //    serializer.RecursionLimit = recursionDepth;
 38    //    return serializer.Serialize(obj);
 39    //}
 40
 41    //对应于JSON的success成员
 42    public bool success
 43    ...{
 44        get
 45        ...{
 46            return _success;
 47        }
 48        set
 49        ...{
 50            //如设置为true则清空error
 51            if (success) _error = string.Empty;
 52            _success = value;
 53        }
 54    }
 55
 56    //对应于JSON的error成员
 57    public string error
 58    ...{
 59        get
 60        ...{
 61            return _error;
 62        }
 63        set
 64        ...{
 65            //如设置error，则自动设置success为false
 66            if (value != "") _success = false;
 67            _error = value;
 68        }
 69    }
 70
 71    public long totlalCount
 72    ...{
 73        get ...{ return _totalCount; }
 74        set ...{ _totalCount = value; }
 75    }
 76
 77
 78    //重置，每次新生成一个json对象时必须执行该方法
 79    public void Reset()
 80    ...{
 81        _success = true;
 82        _error = string.Empty;
 83        singleInfo = string.Empty;
 84        arrData.Clear();
 85        arrDataItem.Clear();
 86    }
 87
 88
 89
 90    public void AddItem(string name, string value)
 91    ...{
 92        arrData.Add("" + name + ":" + "\"" + value + "\"");
 93    }
 94
 95
 96
 97    public void ItemOk()
 98    ...{
 99        arrData.Add("<BR>");
100        //返回总记录条数
101    }
102
103   
104    //序列化JSON对象，得到返回的JSON代码
105    public override string ToString()
106    ...{
107        StringBuilder sb = new StringBuilder();
108        sb.Append("{");
109        sb.Append("totalCount:\"" + _totalCount.ToString() + "\",");
110        sb.Append("success:" + _success.ToString().ToLower() + ",");
111        sb.Append("error:\"" + _error.Replace("\"", "\\\"") + "\",");
112        sb.Append("data:[");
113
114        int index = 0;
115        sb.Append("{");
116        if (arrData.Count <= 0)
117        ...{
118            sb.Append("}");
119        }
120        else
121        ...{
122            foreach (string val in arrData)
123            ...{
124                index++;
125
126                if (val != "<BR>")
127                ...{
128                    sb.Append(val + ",");
129                }
130                else
131                ...{
132                    sb = sb.Replace(",", "", sb.Length - 1, 1);
133                    sb.Append("},");
134                    if (index < arrData.Count)
135                    ...{
136                        sb.Append("{");
137                    }
138                }
139
140            }
141            sb = sb.Replace(",", "", sb.Length - 1, 1);
142            sb.Append("]");
143        }
144
145        sb.Append("}");
146        return sb.ToString();
147    }
148}
149