xml seialization by soap formattor

XmlTypeMapping mymapping = (new SoapReflectionImporter().ImportTypeMapping(typeof(company)));

i fixed the error but no result !
this is the code:
using System;
using System.Collections;
using System.Xml.Serialization;
using System.Xml;
using System.Text;
using System.IO;
namespace serializablexml
{
[Serializable]
public class company
{
[SoapAttribute(AttributeName = "company")]
public string companyname;
[SoapElement(ElementName = "Corporate Office")]
public string corporate_office;
[SoapIgnore]
public string comID;

public override string ToString()
{
string send;
send = "\n Comapany name" + this.companyname;
send += "\n Corporate Office" + this.corporate_office;
send += "\n Comapny ID:" + this.comID;
return send;
}
}
public class program
{
public static void Main()
{
company comp = new company();
comp.ToString();
try
{
string filename = "D:\\company.soap";
XmlTypeMapping mymapping = (new SoapReflectionImporter().ImportTypeMapping(typeof(company)));
XmlSerializer serializer = new XmlSerializer(mymapping);
company mycompany = new company();
mycompany.companyname = "AC.ltd";
mycompany.comID = "124543";
mycompany.corporate_office = "Delhi";
XmlTextWriter writer = new XmlTextWriter(filename, Encoding.ASCII);
writer.Formatting = Formatting.Indented;
writer.WriteStartElement("Ccompany Info");
serializer.Serialize(writer, mycompany);
writer.WriteEndElement();
writer.Close();
XmlTextReader reader = new XmlTextReader(filename);
reader.ReadStartElement("Company Info");
mycompany = (company)serializer.Deserialize(reader);
reader.ReadEndElement();
reader.Close();
}
catch (InvalidOperationException ex)
{
Console.WriteLine(ex.Message);
Console.WriteLine("=========================================================");
Console.WriteLine(ex.Data);
Console.WriteLine("=========================================================");
Console.WriteLine(ex.Source);
Console.WriteLine("==========================================================");
Console.WriteLine(ex.TargetSite);
Console.WriteLine("=========================================================");
Console.WriteLine(ex.StackTrace);
Console.ReadLine();

}
catch (XmlException ex)
{
Console.WriteLine(ex.Message);
Console.WriteLine("=========================================================");
Console.WriteLine(ex.Data);
Console.WriteLine("=========================================================");
Console.WriteLine(ex.Source);
Console.WriteLine("==========================================================");
Console.WriteLine(ex.TargetSite);
Console.WriteLine("=========================================================");
Console.WriteLine(ex.StackTrace);
Console.WriteLine("==========================================================");
Console.WriteLine(ex.LineNumber);
Console.WriteLine("===========================================================");
Console.WriteLine(ex.LinePosition);

Console.ReadLine();
}

}
}
}

i cant understand what u want to say!