Generate xml files based on c# classes

	I have a class file which had generated from xsd, now I want to construct xml.
	Step1.
	Get Your Class file. (This one has generated from .xsd)
	public class Community
	{
	public string Author { get; set; }
	public int CommunityId { get; set; }
	public string Name { get; set; }
	[XmlArray]
	[XmlArrayItem(typeof(RegisteredAddress))]
	[XmlArrayItem(typeof(TradingAddress))]
	public List<Address> Addresses { get; set; }
	}
	public class Address
	{
	private string _postCode;
	public string AddressLine1 { get; set; }
	public string AddressLine2 { get; set; }
	public string AddressLine3 { get; set; }
	public string City { get; set; }
	public string Country { get; set; }
	public string PostCode
	{
	get { return _postCode; }
	set {
	// validate post code e.g. with RegEx
	_postCode = value;
	}
	}
	}
	public class RegisteredAddress : Address { }
	public class TradingAddress : Address { }
	-------------
	Now I have to generate .xml file.
	Write console application using C#.
	Open .cs file
	Inside main add below code..
	---------------------------
	Community community = new Community {
	Author = "xxx xxx",
	CommunityId = 0,
	Name = "name of community",
	Addresses = new List<Address> {
	new RegisteredAddress {
	AddressLine1 = "xxx",
	AddressLine2 = "xxx",
	AddressLine3 = "xxx",
	City = "xx",
	Country = "xxxx",
	PostCode = "0000-00"
	},
	new TradingAddress {
	AddressLine1 = "zz",
	AddressLine2 = "xxx"
	}
	}
	};
	XmlSerializer serializer = new XmlSerializer(typeof(xml_output));
	TextWriter writer = new StreamWriter(@"C:\\sample.xml");
	serializer.Serialize(writer, community);
	--------------------
	OUTPUT
	------------
	<community>
	<author>xxx xxx</author>
	<communityid>000</communityid>
	<name>name of the community</name>
	<addresses>
	<registeredaddress>
	<addressline1>xxx</addressline1>
	<addressline2>xxx</addressline2>
	<addressline3>xxx</addressline3>
	<city>xxx</city>
	<county>xx</county>
	<postcode>0000-000</postcode>
	<country>xxx</country>
	</registeredaddress>
	<tradingaddress>
	<addressline1>xxx</addressline1>
	<addressline2>xxx</addressline2>
	<addressline3>xxx</addressline3>
	<city>xxx</city>
	<county>xx</county>
	<postcode>0000-000</postcode>
	<country>xxx</country>
	</tradingaddress>
	</addresses>
	<community>

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