Distributed Command Pattern - an extension of command pattern for connected systems

using System;

using DistributedCommand.Framework;

namespace DistributedCommand.Chat
{
	/// <summary>
	/// Client has been left and conversation
	/// </summary>
	[Serializable]
	public class ClientLeftCommand : UICommand, ICommand
	{
		public ConnectedClient Client;
		public ClientLeftCommand( ConnectedClient client )
		{
			this.Client = client;
		}

		void ICommand.Execute()
		{
			object itemToRemove = null;
			// Remove the client from the client list
			foreach( ConnectedClient client in base.UI.ClientListBox.Items )
			{
				if( client.ID == this.Client.ID )
				{
					base.UI.ChatHistoryTextBox.AppendText( 
						client.Name + " has left the room" + Environment.NewLine );
					itemToRemove = client; 
					break;
				}
			}

			if( null != itemToRemove )
			{
				base.UI.ClientListBox.Items.Remove( itemToRemove );
			}
		}
	}
}