asp.net DataTable和Dataset序列化成Json格式

13年前
DataTableToJson：
using System;  using System.Collections.Generic;  using System.Linq;  using System.Text;  using System.Runtime.Serialization.Json;  using System.Runtime.Serialization;  using System.IO;  using System.Web.Script.Serialization;  using MicroBlog.Common.APIHelper;  using System.Web;    namespace MicroBlog.Common.APIHelper  {      public class Resolve      {          /// <summary>          /// JSON文本转对象,泛型方法          /// </summary>          /// <typeparam name="T">类型</typeparam>          /// <param name="jsonText">JSON文本</param>          /// <returns>指定类型的对象</returns>          public static T JSONToObject<T>(string jsonText, HttpContext context)          {              JavaScriptSerializer jss = new JavaScriptSerializer();              try              {                  return jss.Deserialize<T>(jsonText);              }              catch (Exception ex)              {                  return default(T);              }          }            /// <summary>          /// 将JSON文本转换成数据行          /// </summary>          /// <param name="jsonText">JSON文本</param>          /// <returns>数据行的字典</returns>          public static Dictionary<string, object> DataRowFromJSON(string jsonText, HttpContext context)          {              return JSONToObject<Dictionary<string, object>>(jsonText, context);          }      }  }
调用的话：Dictionary<string, object> dt = Resolve.DataRowFromJSON(requestbuffer, context);

 

DatasetToJson：
public class DataSetConverter : JsonConverter  {      public override bool CanConvert(Type objectType)      {          return typeof(DataSet).IsAssignableFrom(objectType);      }        public override void WriteJson(JsonWriter writer, object value)      {          DataSet ds = (DataSet)value;          writer.WriteStartObject();          foreach (DataTable dt in ds.Tables)          {              writer.WritePropertyName(dt.TableName);              writer.WriteStartArray();              foreach (DataRow dr in dt.Rows)              {                  writer.WriteStartObject();                  foreach (DataColumn dc in dt.Columns)                  {                      writer.WritePropertyName(dc.ColumnName);                      writer.WriteValue(dr[dc].ToString());                  }                  writer.WriteEndObject();              }              writer.WriteEndArray();          }          writer.WriteEndObject();      }  }
调用的话：JavaScriptConvert.SerializeObject(GetTestDataTable(), new DataTableConverter());