XML Generated with XML serializer is creating empty tags

Question

Hello All,

 I feel this is a basic question. Please help me to resolve this. I am new to C# development.

I tried to create an xml out of the student object which has a list of mark objects as a member. 

 

public class student

{

public String Name { get; set; }

public String Class { get; set; }

public List<Mark> MarkList { get; set; }

}

 

public class Mark

{

string Subject { get; set; }

int Score { get; set; }

public Mark(string sub, int score)

{

Subject = sub;

Score = score;

}

public Mark()

{

}

}

 ----------------------------

 

private void savefile(object sender, RoutedEventArgs e)

{

List<Mark> markList = new List<Mark>();

markList.Add(new Mark("Physics",22));

markList.Add(new Mark("Chemistry", 23));

markList.Add(new Mark("Biology", 24));

markList.Add(new Mark("Maths", 25));

student s1 = new student();

s1.Name = "Bob";

s1.Class = "p1";

s1.MarkList =markList;

Serialise(s1);

}

static public void Serialise(student details)

{

XmlSerializer serializer = new XmlSerializer(typeof(student));

using (TextWriter writer = new StreamWriter(@"C:\Xml.xml"))

{

serializer.Serialize(writer, details);

}

}

 

 

On serializing , I am getting the output as follows.

 

<?xml version="1.0" encoding="utf-8"?>

<student xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">

<Name>Bob</Name>

<Class>p1</Class>

<MarkList>

<Mark />

<Mark />

<Mark />

<Mark />

</MarkList>

</student>

The Mark tags are not populating the data.

Please help..

Thanks in advance.