Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
669 views
in Technique[技术] by (71.8m points)

c# - Prevent self closing tags in XmlSerializer when no data is present

When I serialize the value : If there is no value present in for data then it's coming like below format.

  <Note>
        <Type>Acknowledged by PPS</Type>
        <Data />
  </Note>

But what I want xml data in below format:

  <Note>
        <Type>Acknowledged by PPS</Type>
        <Data></Data>
  </Note>

Code For this i have written :

[Serializable]
public class Notes
{
    [XmlElement("Type")]
    public string typeName { get; set; }

    [XmlElement("Data")]
    public string dataValue { get; set; }
}

I am not able to figure out what to do for achieve data in below format if data has n't assign any value.

  <Note>
        <Type>Acknowledged by PPS</Type>
        <Data></Data>
  </Note>
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

You can do this by creating your own XmlTextWriter to pass into the serialization process.

public class MyXmlTextWriter : XmlTextWriter
{
    public MyXmlTextWriter(Stream stream) : base(stream, Encoding.UTF8)
    {

    }

    public override void WriteEndElement()
    {
        base.WriteFullEndElement();
    }
}

You can test the result using:

class Program
{
    static void Main(string[] args)
    {
        using (var stream = new MemoryStream())
        {
            var serializer = new XmlSerializer(typeof(Notes));
            var writer = new MyXmlTextWriter(stream);
            serializer.Serialize(writer, new Notes() { typeName = "Acknowledged by PPS", dataValue="" });
            var result = Encoding.UTF8.GetString(stream.ToArray());
            Console.WriteLine(result);
        }
       Console.ReadKey();
    }

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...