--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Demo/WinForms/BusinessLogic/ManagerBase.cs	Thu Mar 27 21:46:09 2014 +0400
@@ -0,0 +1,79 @@
+using System;
+
+using BLToolkit.DataAccess;
+using BLToolkit.EditableObjects;
+
+using BLToolkit.Demo.ObjectModel;
+using BLToolkit.Demo.BusinessLogic.DataAccess;
+
+namespace BLToolkit.Demo.BusinessLogic
+{
+	public abstract class ManagerBase<T,A>
+		where T : BizEntity
+		where A : AccessorBase<T,A>
+	{
+		#region Insert, Update, Delete
+
+		public void Insert(T obj)
+		{
+			obj.Validate();
+
+			obj.ID = Accessor.Insert(obj);
+
+			obj.AcceptChanges();
+		}
+
+		public void Update(T obj)
+		{
+			obj.Validate();
+			
+			Query.Update(obj);
+
+			obj.AcceptChanges();
+		}
+
+		public void Delete(T obj)
+		{
+			Query.Delete(obj);
+		}
+
+		public void Delete(int id)
+		{
+			Query.DeleteByKey(id);
+		}
+
+		#endregion
+
+		#region Select
+
+		public EditableList<T> SelectAll()
+		{
+			EditableList<T> list = new EditableList<T>();
+
+			return Query.SelectAll(list);
+		}
+
+		#endregion
+
+		#region Protected Members
+
+		protected virtual A Accessor
+		{
+			get { return AccessorBase<T,A>.CreateInstance(); }
+		}
+
+		private            SqlQuery<T>   _query;
+		protected virtual  SqlQuery<T>    Query
+		{
+			get
+			{
+				if (null == _query)
+					_query = new SqlQuery<T>();
+
+				return _query;
+			}
+		}
+
+		#endregion
+	}
+}