JsonHelper

public class JsonHelper
    {
        public JsonHelper() { }
        /// <summary>
        /// 把json字符串转成对象
        /// </summary>
        /// <typeparam name="T">对象</typeparam>
        /// <param name="data">json字符串</param>
        public static T Deserialize<T>(string data)
        {
            JavaScriptSerializer json = new JavaScriptSerializer();
            return json.Deserialize<T>(data);
        }

        /// <summary>
        /// 把对象转成json字符串
        /// </summary>
        /// <param name="o">对象</param>
        /// <returns>json字符串</returns>
        public static string Serialize(object o)
        {
            StringBuilder sb = new StringBuilder();
            JavaScriptSerializer json = new JavaScriptSerializer();
            json.Serialize(o, sb);
            return sb.ToString();
        }

        /// <summary>
        /// 把DataTable对象转成json字符串
        /// </summary>
        public string ToJson(DataTable dt)
        {
            JavaScriptSerializer javaScriptSerializer = new JavaScriptSerializer();
            ArrayList arrayList = new ArrayList();
            foreach (DataRow dataRow in dt.Rows)
            {
                Dictionary<string, object> dictionary = new Dictionary<string, object>();
                foreach (DataColumn dataColumn in dt.Columns)
                {
                    dictionary.Add(dataColumn.ColumnName, dataRow[dataColumn.ColumnName]);
                }
                arrayList.Add(dictionary);
            }
            return javaScriptSerializer.Serialize(arrayList);
        }
    }