/// <summary>      /// DataTable 转换为List 集合      /// </summary>      /// <typeparam name="TResult">类型</typeparam>      /// <param name="dt">DataTable</param>      /// <returns></returns>      public static List<TResult> ToList<TResult>(DataTable dt) where TResult : class, new()    {        //创建一个属性的列表          List<PropertyInfo> prlist = new List<PropertyInfo>();        //获取TResult的类型实例  反射的入口          Type t = typeof(TResult);        //获得TResult 的所有的Public 属性 并找出TResult属性和DataTable的列名称相同的属性(PropertyInfo) 并加入到属性列表          Array.ForEach<PropertyInfo>(t.GetProperties(), p => { if (dt.Columns.IndexOf(p.Name) != -1) prlist.Add(p); });        //创建返回的集合          List<TResult> oblist = new List<TResult>();        foreach (DataRow row in dt.Rows)        {            //创建TResult的实例              TResult ob = new TResult();            //找到对应的数据  并赋值              prlist.ForEach(p => { if (row[p.Name] != DBNull.Value) p.SetValue(ob, row[p.Name], null); });            //放入到返回的集合中.              oblist.Add(ob);        }        return oblist;    }

var result = from account in db.PublicAccount.ToList()                         where account.Name.Contains(keyword)                         select account;            result = result.ToList();            JObject json = new JObject(                new JProperty(                    "accounts",                    new JArray(//帐号数组                        result.Select(                        r =>                        new JObject(//账号对象                            new JProperty(                                "id", r.ID                                ),                                new JProperty(                                "name", r.Name                                ),                                new JProperty(                                "desc", r.Desc                                )                                )                                )                                )                                )                                );