--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HowTo/DataAccess/OpenConfigQuery.cs	Thu Mar 27 21:46:09 2014 +0400
@@ -0,0 +1,67 @@
+using System;
+
+using NUnit.Framework;
+
+using BLToolkit.Data;
+using BLToolkit.DataAccess;
+using BLToolkit.Mapping;
+
+namespace HowTo.DataAccess
+{
+	[TestFixture]
+	public class OpenConfigQuery
+	{
+		public class Person
+		{
+			[MapField("PersonID"), PrimaryKey, NonUpdatable]
+			public int    ID;
+
+			public string LastName;
+			public string FirstName;
+			public string MiddleName;
+		}
+
+		// /*[i]*/DbManager/*[/i]*/ is created by /*[i]*/SqlQuery/*[/i]*/.
+		//
+		[Test]
+		public void Test1()
+		{
+			SqlQuery<Person> query = new SqlQuery<Person>/*[a]*/()/*[/a]*/;
+
+			Person person = query.SelectByKey(1);
+
+			Assert.IsNotNull(person);
+		}
+
+		// /*[i]*/SqlQuery/*[/i]*/ takes /*[i]*/DbManager/*[/i]*/ as a parameter.
+		//
+		[Test]
+		public void Test2()
+		{
+			using (DbManager db = new DbManager())
+			{
+				SqlQuery<Person> query = new SqlQuery<Person>/*[a]*/(db)/*[/a]*/;
+
+				Person person = query.SelectByKey(1);
+
+				Assert.IsNotNull(person);
+			}
+		}
+
+		// /*[i]*/SqlQuery/*[/i]*/ method takes /*[i]*/DbManager/*[/i]*/ as a parameter.
+		//
+		[Test]
+		public void Test3()
+		{
+			using (DbManager db = new DbManager())
+			{
+				SqlQuery<Person> query = new SqlQuery<Person>/*[a]*/()/*[/a]*/;
+
+				Person person = query.SelectByKey(/*[a]*/db/*[/a]*/, 1);
+
+				Assert.IsNotNull(person);
+			}
+		}
+	}
+}
+