DataContractJsonSerializer 轉換 IEnumerable 介面

[DataContract]
public class JsonData
{
    [DataMember(Name = "ID", Order = 0)]
    public int Id { get; set; }
[DataMember(Order = 1)]
public string Name { get; set; }

[DataMember(Order = 2)]
public DateTime Today { get; set; }

[DataMember(Order=3)]
public bool IsBool { get; set; }

[IgnoreDataMember()]
public string UnlessField { get; set; }

}

// 淮備序列化的類別資料
List<JsonData> dataList = new List<JsonData>()
{
    new JsonData()
    {
        Id = 1,
        Name = "data1",
        Today = DateTime.Now.AddDays(-1),
        IsBool = true,
        UnlessField = "沒用到的欄位1"
    },
    new JsonData()
    {
        Id = 2,
        Name = "data2",
        Today = DateTime.Now,
        IsBool = false,
        UnlessField = "沒用到的欄位2"
    },
    new JsonData()
    {
        Id = 3,
        Name = "data3",
        Today = DateTime.Now.AddDays(1),
        IsBool = true,
        UnlessField = "沒用到的欄位3"
    }
};
// 初始化DataContractJsonSerializer類別
DataContractJsonSerializer dcjs = new DataContractJsonSerializer(typeof(List<JsonData>));
string jsonString = string.Empty;

// 序列化資料
using (MemoryStream ms = new MemoryStream())
{
    dcjs.WriteObject(ms, dataList);
    jsonString = Encoding.UTF8.GetString(ms.ToArray());
    Console.WriteLine(jsonString);
    Console.WriteLine();
}

// 反序列化資料
using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonString)))
{
    List<JsonData> data2List = dcjs.ReadObject(ms) as List<JsonData>;
    foreach (JsonData item in data2List)
    {
        Console.WriteLine(
            "Id:{0}, Name:{1}, Today:{2}, IsBool:{3}, UnlessField:{4}",
            item.Id,
            item.Name,
            item.Today,
            item.IsBool,
            item.UnlessField);
    }
}