Simple Data Access in C#

using System;
using System.Runtime.Serialization;
using System.Security.Permissions;


namespace Yap.Data.Client
{

	/// <summary>
	/// The exception that is thrown when an exception occurs during command execution.
	/// </summary>
	[Serializable]
	public class CommandExecutionException : Exception
	{
		private readonly Command _Command;

		/// <summary>
		/// Gets the command that is the cause of exception.
		/// </summary>
		public Command Command
		{
			get { return _Command; }
		}

		/// <summary>
		/// Initializes a new instance of the CommandExecutionException class using default property values.
		/// </summary>
		public CommandExecutionException() { }
		
		/// <summary>
		/// Initializes a new instance of the CommandExecutionException class with the specified error message.
		/// </summary>
		/// <param name="message">The message that describes the exception.</param>
		public CommandExecutionException(String message) : base(message) { }
		
		/// <summary>
		/// Initializes a new instance of the CommandExecutionException class with the specified error message and a reference to the inner exception that is the cause of this exception.
		/// </summary>
		/// <param name="message">The message that describes the exception.</param>
		/// <param name="inner">The exception that is the cause of the current exception.</param>
		public CommandExecutionException(String message, Exception inner) : this(message, null, inner) { }
		
		/// <summary>
		/// Initializes a new instance of the CommandExecutionException class with the specified error message, command and a reference to the inner exception that is the cause of this exception.
		/// </summary>
		/// <param name="message">The message that describes the exception.</param>
		/// <param name="command">The command that is the cause of exception.</param>
		/// <param name="inner">The exception that is the cause of the current exception.</param>
		public CommandExecutionException(String message, Command command, Exception inner)
			: base(message, inner)
		{
			_Command = command;
		}
	
		/// <summary>
		/// Initializes a new instance of the CommandExecutionException class with serialized data.
		/// </summary>
		/// <param name="info">The SerializationInfo that holds the serialized object data about the exception being thrown.</param>
		/// <param name="context">The StreamingContext that contains contextual information about the source or destination.</param>
		protected CommandExecutionException(SerializationInfo info, StreamingContext context)
			: base(info, context)
		{
			_Command = (Command)info.GetValue("_Command", typeof(Command));
		}

		/// <summary>
		/// When overridden in a derived class, sets the SerializationInfo with information about the exception.
		/// </summary>
		/// <param name="info">The SerializationInfo that holds the serialized object data about the exception being thrown.</param>
		/// <param name="context">The StreamingContext that contains contextual information about the source or destination.</param>
		[SecurityPermission(SecurityAction.Demand, SerializationFormatter = true)]
		public override void GetObjectData(SerializationInfo info, StreamingContext context)
		{
			base.GetObjectData(info, context);
			info.AddValue("_Command", _Command);
		}
	}
}