为什么在使用包装格式时无法使用datacontractserializer反序列化json

创建一个jsondeserilzer像这样的方法：

public static T DataJsonDeserializer<T>(string jsonString)
{
    var mStrm = new MemoryStream(Encoding.UTF8.GetBytes(jsonString));
    var jsonSerializer = new DataContractJsonSerializer(typeof(T));
    var objResponse = jsonSerializer.ReadObject(mStrm);
    return (T)objResponse;
}

然后我们创建一个json对象，如下所示：

public class SignInResult
{
    public DateTime CreationDate { get; set; }
    public string Email { get; set; }
    public bool IsApproved { get; set; }
    public bool IsLockedOut { get; set; }
    public bool IsOnline { get; set; }
    public bool IsValidLogin { get; set; }
    public DateTime LastActivityDate { get; set; }
    public DateTime LastLockoutDate { get; set; }
    public DateTime LastLoginDate { get; set; }
    public DateTime LastPasswordChangedDate { get; set; }
    public string ProviderName { get; set; }
    public string ProviderUserKey { get; set; }
    public string UserName { get; set; }
}

public class RootObject
{
    public SignInResult SignInResult { get; set; }
}

最终，您可以对以下任何内容进行反序列化：

var x = JsonDeserializer<RootObject>(provider.SignIn(username, password)));