--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HowTo/Mapping/MapFieldAttribute.cs	Thu Mar 27 21:46:09 2014 +0400
@@ -0,0 +1,88 @@
+using System;
+
+using NUnit.Framework;
+
+using BLToolkit.Mapping;
+
+namespace HowTo.Mapping
+{
+	[TestFixture]
+	public class MapField
+	{
+		public class SourceObject1
+		{
+			public string Street = "1 Main";
+			public string City   = "Bigtown";
+			public string State  = "XX";
+			public string Zip    = "00000";
+		}
+
+		public class Address
+		{
+			public string Street;
+			public string City;
+			public string State;
+			public string Zip;
+		}
+
+		/*[a]*/[MapField("Street", "Address.Street")]/*[/a]*/
+		/*[a]*/[MapField("City",   "Address.City")]/*[/a]*/
+		/*[a]*/[MapField("State",  "Address.State")]/*[/a]*/
+		/*[a]*/[MapField("Zip",    "Address.Zip")]/*[/a]*/
+		public class Order1
+		{
+			public Address Address = new Address();
+		}
+
+		[Test]
+		public void MapFieldTest1()
+		{
+			SourceObject1 source = new SourceObject1();
+			Order1        order  = Map.ObjectToObject<Order1>(source);
+
+			Assert.AreEqual("1 Main",  order.Address.Street);
+			Assert.AreEqual("Bigtown", order.Address.City);
+			Assert.AreEqual("XX",      order.Address.State);
+			Assert.AreEqual("00000",   order.Address.Zip);
+		}
+
+		public class SourceObject2
+		{
+			public string BillingStreet = "1 Main";
+			public string BillingCity   = "Bigtown";
+			public string BillingState  = "XX";
+			public string BillingZip    = "00000";
+
+			public string ShippingStreet = "2 Main";
+			public string ShippingCity   = "Bigtown";
+			public string ShippingState  = "XX";
+			public string ShippingZip    = "00000";
+		}
+
+		public class Order2
+		{
+			/*[a]*/[MapField(Format="Billing{0}")]/*[/a]*/
+			public Address BillingAddress = new Address();
+
+			/*[a]*/[MapField(Format="Shipping{0}")]/*[/a]*/
+			public Address ShippingAddress = new Address();
+		}
+
+		[Test]
+		public void MapFieldTest2()
+		{
+			SourceObject2 source = new SourceObject2();
+			Order2        order  = Map.ObjectToObject<Order2>(source);
+
+			Assert.AreEqual("1 Main",  order.BillingAddress.Street);
+			Assert.AreEqual("Bigtown", order.BillingAddress.City);
+			Assert.AreEqual("XX",      order.BillingAddress.State);
+			Assert.AreEqual("00000",   order.BillingAddress.Zip);
+
+			Assert.AreEqual("2 Main",  order.ShippingAddress.Street);
+			Assert.AreEqual("Bigtown", order.ShippingAddress.City);
+			Assert.AreEqual("XX",      order.ShippingAddress.State);
+			Assert.AreEqual("00000",   order.ShippingAddress.Zip);
+		}
+	}
+}