transfer data from database to XML?

[Serializable]
public class XmlInformation
{
  private List<Country> myCountry = new List<Country>();
  private List<State> myState = new List<State>();
  public List<Country> Country
  {
    get{ return myCountry; }
    set { myCountry = value; }
  }
  public List<State> State 
  {
    get{ return myState; }
    set { myState = value; }
  }
}
[Serializable]
public class Country
{
  private int myCountryId;
  private string myCountryName;
  public int CountryID
  {
    get{ return myCountryId; }
    set { myCountryId = value; }
  }
  public string CountryName
  {
    get{ return myCountryName; }
    set { myCountryName = value; }
  }
}
[Serializable]
public class State
{
  private int myStateId;
  private string myStateName;
  public int StateID
  {
    get{ return myStateId; }
    set { myStateId = value; }
  }
  public string StateName
  {
    get{ return myStateName; }
    set { myStateName = value; }
  }
}

XmlInformation xmlClassToExport = new XmlInformation();
using (StreamWriter swExport = new StreamWriter("path\to\filename"))
{
  XmlSerializer obj = new XmlSerializer(typeof(XmlInformation));
  obj.Serialize(swExport, xmlClassToExport);
  SW.Close();
}