C＃序列化为XML

Question

I have a class LogModel that contains a list of Logparameters. I want to serialize this to XML. My problem is that only the LogModel class is serialized and that the list of parameters is not added to the XML.

public class LogModel
{
    [XmlText]
    public String Message { get; set; }
    [XmlAttribute]
    public DateTime LogDate { get; set; }
    [XmlAttribute]
    public Int32 Level { get; set; }
    [XmlAttribute]
    public String Type { get; set; }
    public String Source { get; set; }
    public DateTime StartDateTime { get; set; }
    public DateTime EndDateTime { get; set; }
    public String Owner { get; set; }

    [XmlArray("Parameters")]
    public List<LogModelParameter> Parameters { get; set; }
}

public class LogModelParameter
{
    [XmlAttribute]
    public DateTime ParameterDate { get; set; }
    [XmlAttribute]
    public Int32 Level { get; set; }
    [XmlAttribute]
    public Int32 Counter { get; set; }
    [XmlAttribute]
    public String Type { get; set; }
    [XmlText]
    public String Text { get; set; }
}

The code for serializing is the following

XmlSerializer serializer = new XmlSerializer(typeof(List<LogModel>));
TextWriter writer  = new StreamWriter("log.xml");
serializer.Serialize(writer, logModels);

What can be wrong?

Kind regards Dipke

Answer 1

change your serialization method

 var optimizedtype = new XmlSerializer(logModels.GetType());
        using (var Writer = new StreamWriter("log.xml", false))
        {
            optimizedtype.Serialize(Writer, logModels);
        }   

Answer 2

Change From : typeof(List) To : typeof(LogModel)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Serialization;
using System.IO;

namespace ConsoleApplication1
{
    class Program
    {
        const string FILENAME = @"c:\temp\test.xml";
        static void Main(string[] args)
        {
            LogModel logModels = new LogModel()
            {
                Message = "Hello",
                LogDate = DateTime.Now,
                Level = 123,
                Type = "Red",
                Source = "Web",
                StartDateTime = DateTime.Now.AddHours(-1),
                EndDateTime = DateTime.Now.AddHours(2),
                Owner = "Me",
                Parameters = new List<LogModelParameter>() {
                    new LogModelParameter() {
                        ParameterDate = DateTime.Now,
                        Level = 5,
                        Counter = -1,
                        Type = "Banana",
                        Text = "Hello"
                    },
                    new LogModelParameter() {
                        ParameterDate = DateTime.Now.AddHours(1),
                        Level = 4,
                        Counter = 0,
                        Type = "Peach",
                        Text = "Goodbye"
                    }
                }
            };

            XmlSerializer serializer = new XmlSerializer(typeof(LogModel));
            TextWriter writer = new StreamWriter("log.xml");
            serializer.Serialize(writer, logModels);

        }
    }
    public class LogModel
    {
        [XmlText]
        public String Message { get; set; }
        [XmlAttribute]
        public DateTime LogDate { get; set; }
        [XmlAttribute]
        public Int32 Level { get; set; }
        [XmlAttribute]
        public String Type { get; set; }
        public String Source { get; set; }
        public DateTime StartDateTime { get; set; }
        public DateTime EndDateTime { get; set; }
        public String Owner { get; set; }

        [XmlElement("Parameters")]
        public List<LogModelParameter> Parameters { get; set; }
    }

    public class LogModelParameter
    {
        [XmlAttribute]
        public DateTime ParameterDate { get; set; }
        [XmlAttribute]
        public Int32 Level { get; set; }
        [XmlAttribute]
        public Int32 Counter { get; set; }
        [XmlAttribute]
        public String Type { get; set; }
        [XmlText]
        public String Text { get; set; }
    }

}
​