如何在C＃中将XML日期值序列化为DateTime类

Question

I am passing the following xml

<PolicyNumber>6456365A1</PolicyNumber>
<EffectiveDate>2015-10-01T00:00:00</EffectiveDate>
<ExpirationDate>2016-10-01T00:00:00</ExpirationDate>

to class through fiddler post.But the Values in the following class

    [DataContract]
    public class Parameter
    {
        [DataMember]
        public string PolicyNumber { get; set; }
        [DataMember] 
        public DateTime EffectiveDate { get; set; }
        [DataMember]
        public DateTime ExpirationDate { get; set; }
    }

The value for policy number getting passed as expected.The value for DateTime is not getting passed instead it has its default value. I am posting it using fiddler to web api mvc.

Answer 1

You can simply make it a private member that is only used for serialization.

[DataContract]
public class AutoIDCardParameter
{
    [DataMember(Name = "PolicyNumber")]
    public string PolicyNumber;

    [DataMember(Name = "EffectiveDate")]
    private string _EffectiveDate {
        get {
            return EffectiveDate.ToString("yyyy-MM-DDTHH:mm:ss");
        }
        set {
            DateTime.TryParse(value, out EffectiveDate);
        }
    }

    public DateTime EffectiveDate;

    // ....
}

Answer 2

The order is wrong here. DataContractSerializer will use alphabetical order unless you specify otherwise (see the docs ), so it's expecting EffectiveDate , ExpirationDate , and then PolicyNumber .

You need to either re-arrange your XML to be in that order, or you need to specify the order on the class via attributes:

[DataContract]
public class Parameter
{
    [DataMember(Order = 0)]
    public string PolicyNumber { get; set; }
    [DataMember(Order = 1)]
    public DateTime EffectiveDate { get; set; }
    [DataMember(Order = 2)]
    public DateTime ExpirationDate { get; set; }
}