TCP/IP Chat Application Using C#

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Net.Sockets;

namespace Proshot.CommandClient
{
    /// <summary>
    /// Occurs when a command received from the server.
    /// </summary>
    /// <param name="sender">Sender.</param>
    /// <param name="e">The information about the received command.</param>
    public delegate void CommandReceivedEventHandler(object sender , CommandEventArgs e);

    /// <summary>
    /// Occurs when a command had been sent to the the remote server Successfully.
    /// </summary>
    /// <param name="sender">Sender.</param>
    /// <param name="e">EventArgs.</param>
    public delegate void CommandSentEventHandler(object sender , EventArgs e);

    /// <summary>
    /// Occurs when a command sending action had been failed.This is because disconnection or sending exception.
    /// </summary>
    /// <param name="sender">Sender.</param>
    /// <param name="e">EventArgs.</param>
    public delegate void CommandSendingFailedEventHandler(object sender , EventArgs e);

    /// <summary>
    /// The class that contains information about a command.
    /// </summary>
    public class CommandEventArgs : EventArgs
    {
        private Command command;
        /// <summary>
        /// The received command.
        /// </summary>
        public Command Command
        {
            get { return command; }
        }
        /// <summary>
        /// Creates an instance of CommandEventArgs class.
        /// </summary>
        /// <param name="cmd">The received command.</param>
        public CommandEventArgs(Command cmd)
        {
            this.command = cmd;
        }
    }
    /// <summary>
    /// Occurs when the server had been disconnected from this client.
    /// </summary>
    /// <param name="sender">Sender.</param>
    /// <param name="e">The server information.</param>
    public delegate void ServerDisconnectedEventHandler(object sender , ServerEventArgs e);
    /// <summary>
    /// The class that contains information about the server.
    /// </summary>
    public class ServerEventArgs : EventArgs
    {
        private Socket socket;
        /// <summary>
        /// The IP address of server.
        /// </summary>
        public IPAddress IP
        {
            get { return ( (IPEndPoint)this.socket.RemoteEndPoint ).Address; }
        }
        /// <summary>
        /// The port of server.
        /// </summary>
        public int Port
        {
            get { return ( (IPEndPoint)this.socket.RemoteEndPoint ).Port; }
        }
        /// <summary>
        /// Creates an instance of ServerEventArgs class.
        /// </summary>
        /// <param name="clientSocket">The client socket of current CommandClient instance.</param>
        public ServerEventArgs(Socket clientSocket)
        {
            this.socket = clientSocket;
        }
    }

    /// <summary>
    /// Occurs when this client disconnected from the server.
    /// </summary>
    /// <param name="sender">Sender.</param>
    /// <param name="e">EventArgs.</param>
    public delegate void DisconnectedEventHandler(object sender , EventArgs e);

    /// <summary>
    /// Occurs when this client connected to the remote server Successfully.
    /// </summary>
    /// <param name="sender">Sender.</param>
    /// <param name="e">EventArgs.</param>
    public delegate void ConnectingSuccessedEventHandler(object sender , EventArgs e);

    /// <summary>
    /// Occurs when this client failed on connecting to server.
    /// </summary>
    /// <param name="sender">Sender.</param>
    /// <param name="e">EventArgs.</param>
    public delegate void ConnectingFailedEventHandler(object sender , EventArgs e);

    /// <summary>
    /// Occurs when the network had been failed.
    /// </summary>
    /// <param name="sender">Sender.</param>
    /// <param name="e">EventArgs.</param>
    public delegate void NetworkDeadEventHandler(object sender , EventArgs e);

    /// <summary>
    /// Occurs when the network had been started to work.
    /// </summary>
    /// <param name="sender">Sender.</param>
    /// <param name="e">EventArgs.</param>
    public delegate void NetworkAlivedEventHandler(object sender , EventArgs e);

}