BlogEngine.Core/BusinessBase.cs

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#region Using

using System;
using System.Text;
using System.ComponentModel;
using System.Collections.Specialized;
using System.Globalization;
using System.Threading;

#endregion

namespace BlogEngine.Core
{
	/// <summary>
	/// This is the base class from which most business objects will be derived. 
	/// To create a business object, inherit from this class.
	/// </summary>
	/// <typeparam name="TYPE">The type of the derived class.</typeparam>
	/// <typeparam name="KEY">The type of the Id property.</typeparam>
	[Serializable]
	public abstract class BusinessBase<TYPE, KEY> : IDataErrorInfo, INotifyPropertyChanged, IChangeTracking, IDisposable where TYPE : BusinessBase<TYPE, KEY>, new()
	{

		#region Properties

		private KEY _Id;
		/// <summary>
		/// Gets the unique Identification of the object.
		/// </summary>
		public KEY Id
		{
			get { return _Id; }
			set { _Id = value; }
		}

		private DateTime _DateCreated = DateTime.MinValue;
		/// <summary>
		/// The date on which the instance was created.
		/// </summary>
		public DateTime DateCreated
		{
			get
			{
				if (_DateCreated == DateTime.MinValue)
					return _DateCreated;

				return _DateCreated.AddHours(BlogSettings.Instance.Timezone);
			}
			set 
			{
				if (_DateCreated != value) MarkChanged("DateCreated");
				_DateCreated = value; 
			}
		}

		private DateTime _DateModified = DateTime.MinValue;
		/// <summary>
		/// The date on which the instance was modified.
		/// </summary>
		public DateTime DateModified