Console FTP in C#

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.IO;
using Ftp;
using System.Runtime.InteropServices;
using Ftp.Interagent;


namespace JFtp
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class JFtp : System.Windows.Forms.Form
	{
		[DllImport("User32.dll")]
		private static extern bool SendMessage(IntPtr hwnd, UInt32 msg, UInt32 
			wParam, UInt32 lParam);

		private bool pasv, exiting;
		private JFtpHelper jFtpHelper;
		string ip;
		private int splitterCounter;
		private ExtFtp.ExtEventHandler ftpConn;
		private ExtFtpIa.ExtIaEventHandler jHandler;
		public delegate void AddToLogHandler();
		ListViewItem logItem;

		#region auto generated variables

		private System.Windows.Forms.MenuItem miConnect;
		private System.Windows.Forms.MenuItem miDisconnect;
		private System.Windows.Forms.MenuItem miExit;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		#endregion		
		private System.Windows.Forms.TreeView lclTreeView;
		private System.Windows.Forms.TreeView rmtTreeView;
		private System.Windows.Forms.ListView lclListView;
		private System.Windows.Forms.ListView rmtListView;
		private System.Windows.Forms.ListView log;
		private System.Windows.Forms.Splitter logSplitter;
		private System.Windows.Forms.Panel lclPanel;
		private System.Windows.Forms.Panel rmtPanel;
		private System.Windows.Forms.Splitter lclSplitter;
		private System.Windows.Forms.Splitter rmtSplitter;
		private System.Windows.Forms.Splitter splitter1;
		private System.Windows.Forms.ColumnHeader columnHeader2;
		private System.Windows.Forms.ColumnHeader columnHeader3;
		private System.Windows.Forms.ColumnHeader columnHeader4;
		private System.Windows.Forms.ColumnHeader columnHeader5;
		private System.Windows.Forms.ColumnHeader columnHeader6;
		private System.Windows.Forms.ColumnHeader columnHeader7;
		private System.Windows.Forms.ColumnHeader columnHeader8;
		private System.Windows.Forms.ColumnHeader columnHeader9;
		private System.Windows.Forms.ColumnHeader columnHeader10;
		private System.Windows.Forms.Splitter panelsSplitter;
		private System.Windows.Forms.ColumnHeader logColumnHeader;
		private System.Windows.Forms.MainMenu mainMenu;
		private System.Windows.Forms.MenuItem fileMenu;
		private System.Windows.Forms.ContextMenu lclCtxtMnu;
		private System.Windows.Forms.ContextMenu rmtCtxtMnu;
		private System.Windows.Forms.MenuItem lclMiOpen;
		private System.Windows.Forms.MenuItem rmtMiOpen;
		private System.Windows.Forms.MenuItem lclMiUpload;
		private System.Windows.Forms.MenuItem lclMiDelete;
		private System.Windows.Forms.MenuItem lclMiNewDir;
		private System.Windows.Forms.MenuItem lclMiRen;
		private System.Windows.Forms.MenuItem lclMiRefresh;
		private System.Windows.Forms.MenuItem rmtMiDownload;
		private System.Windows.Forms.MenuItem rmtMiDel;
		private System.Windows.Forms.MenuItem rmtMiRen;
		private System.Windows.Forms.MenuItem rmtMiNewDir;
		private System.Windows.Forms.MenuItem rmtMiRefresh;
		private System.Windows.Forms.MenuItem rmtMiProps;
		private System.Windows.Forms.MenuItem lclMiProps;

		public JFtp()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();
			splitterCounter = 0;			
			//populate local tree view and list view
			DisableRemoteMenuItems();
			lclMiUpload.Enabled = false;
			exiting = false;
			new LocalHelper(lclTreeView, lclListView);
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.mainMenu = new System.Windows.Forms.MainMenu();
			this.fileMenu = new System.Windows.Forms.MenuItem();
			this.miConnect = new System.Windows.Forms.MenuItem();
			this.miDisconnect = new System.Windows.Forms.MenuItem();
			this.miExit = new System.Windows.Forms.MenuItem();
			this.log = new System.Windows.Forms.ListView();
			this.logColumnHeader = new System.Windows.Forms.ColumnHeader();
			this.lclTreeView = new System.Windows.Forms.TreeView();
			this.rmtTreeView = new System.Windows.Forms.TreeView();
			this.lclListView = new System.Windows.Forms.ListView();
			this.columnHeader2 = new System.Windows.Forms.ColumnHeader();
			this.columnHeader3 = new System.Windows.Forms.ColumnHeader();
			this.columnHeader4 = new System.Windows.Forms.ColumnHeader();
			this.columnHeader5 = new System.Windows.Forms.ColumnHeader();
			this.lclCtxtMnu = new System.Windows.Forms.ContextMenu();
			this.lclMiOpen = new System.Windows.Forms.MenuItem();
			this.lclMiUpload = new System.Windows.Forms.MenuItem();
			this.lclMiDelete = new System.Windows.Forms.MenuItem();
			this.lclMiNewDir = new System.Windows.Forms.MenuItem();
			this.lclMiRen = new System.Windows.Forms.MenuItem();
			this.lclMiRefresh = new System.Windows.Forms.MenuItem();
			this.lclMiProps = new System.Windows.Forms.MenuItem();
			this.rmtListView = new System.Windows.Forms.ListView();
			this.columnHeader6 = new System.Windows.Forms.ColumnHeader();
			this.columnHeader7 = new System.Windows.Forms.ColumnHeader();
			this.columnHeader8 = new System.Windows.Forms.ColumnHeader();
			this.columnHeader9 = new System.Windows.Forms.ColumnHeader();
			this.columnHeader10 = new System.Windows.Forms.ColumnHeader();
			this.rmtCtxtMnu = new System.Windows.Forms.ContextMenu();
			this.rmtMiOpen = new System.Windows.Forms.MenuItem();
			this.rmtMiDownload = new System.Windows.Forms.MenuItem();
			this.rmtMiDel = new System.Windows.Forms.MenuItem();
			this.rmtMiRen = new System.Windows.Forms.MenuItem();
			this.rmtMiNewDir = new System.Windows.Forms.MenuItem();
			this.rmtMiRefresh = new System.Windows.Forms.MenuItem();
			this.rmtMiProps = new System.Windows.Forms.MenuItem();
			this.logSplitter = new System.Windows.Forms.Splitter();
			this.lclPanel = new System.Windows.Forms.Panel();
			this.lclSplitter = new System.Windows.Forms.Splitter();
			this.rmtPanel = new System.Windows.Forms.Panel();
			this.rmtSplitter = new System.Windows.Forms.Splitter();
			this.splitter1 = new System.Windows.Forms.Splitter();
			this.panelsSplitter = new System.Windows.Forms.Splitter();
			this.lclPanel.SuspendLayout();
			this.rmtPanel.SuspendLayout();
			this.SuspendLayout();
			// 
			// mainMenu
			// 
			this.mainMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					 this.fileMenu});
			// 
			// fileMenu
			// 
			this.fileMenu.Index = 0;
			this.fileMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					 this.miConnect,
																					 this.miDisconnect,
																					 this.miExit});
			this.fileMenu.Text = "File";
			// 
			// miConnect
			// 
			this.miConnect.Index = 0;
			this.miConnect.Text = "Connect";
			this.miConnect.Click += new System.EventHandler(this.Connect);
			// 
			// miDisconnect
			// 
			this.miDisconnect.Enabled = false;
			this.miDisconnect.Index = 1;
			this.miDisconnect.Text = "Disconnect";
			this.miDisconnect.Click += new System.EventHandler(this.Disconnect);
			// 
			// miExit
			// 
			this.miExit.Index = 2;
			this.miExit.Text = "Exit";
			this.miExit.Click += new System.EventHandler(this.miExit_Click);
			// 
			// log
			// 
			this.log.Alignment = System.Windows.Forms.ListViewAlignment.Left;
			this.log.BackColor = System.Drawing.Color.White;
			this.log.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
																				  this.logColumnHeader});
			this.log.Dock = System.Windows.Forms.DockStyle.Bottom;
			this.log.HeaderStyle = System.Windows.Forms.ColumnHeaderStyle.None;
			this.log.Location = new System.Drawing.Point(0, 365);
			this.log.MultiSelect = false;
			this.log.Name = "log";
			this.log.Size = new System.Drawing.Size(816, 104);
			this.log.TabIndex = 0;
			this.log.View = System.Windows.Forms.View.Details;
			// 
			// logColumnHeader
			// 
			this.logColumnHeader.Text = "";
			this.logColumnHeader.Width = 640;
			// 
			// lclTreeView
			// 
			this.lclTreeView.Dock = System.Windows.Forms.DockStyle.Left;
			this.lclTreeView.ImageIndex = -1;
			this.lclTreeView.Name = "lclTreeView";
			this.lclTreeView.SelectedImageIndex = -1;
			this.lclTreeView.Size = new System.Drawing.Size(121, 168);
			this.lclTreeView.TabIndex = 0;
			// 
			// rmtTreeView
			// 
			this.rmtTreeView.Dock = System.Windows.Forms.DockStyle.Left;
			this.rmtTreeView.ImageIndex = -1;
			this.rmtTreeView.Name = "rmtTreeView";
			this.rmtTreeView.PathSeparator = "/";
			this.rmtTreeView.SelectedImageIndex = -1;
			this.rmtTreeView.Size = new System.Drawing.Size(121, 194);
			this.rmtTreeView.TabIndex = 0;
			// 
			// lclListView
			// 
			this.lclListView.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
																						  this.columnHeader2,
																						  this.columnHeader3,
																						  this.columnHeader4,
																						  this.columnHeader5});
			this.lclListView.ContextMenu = this.lclCtxtMnu;
			this.lclListView.Dock = System.Windows.Forms.DockStyle.Fill;
			this.lclListView.FullRowSelect = true;
			this.lclListView.Location = new System.Drawing.Point(124, 0);
			this.lclListView.Name = "lclListView";
			this.lclListView.Size = new System.Drawing.Size(692, 168);
			this.lclListView.TabIndex = 2;
			this.lclListView.View = System.Windows.Forms.View.Details;
			// 
			// columnHeader2
			// 
			this.columnHeader2.Text = "Name";
			this.columnHeader2.Width = 281;
			// 
			// columnHeader3
			// 
			this.columnHeader3.Text = "Size";
			this.columnHeader3.TextAlign = System.Windows.Forms.HorizontalAlignment.Right;
			this.columnHeader3.Width = 112;
			// 
			// columnHeader4
			// 
			this.columnHeader4.Text = "Type";
			// 
			// columnHeader5
			// 
			this.columnHeader5.Text = "Modified";
			this.columnHeader5.Width = 126;
			// 
			// lclCtxtMnu
			// 
			this.lclCtxtMnu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					   this.lclMiOpen,
																					   this.lclMiUpload,
																					   this.lclMiDelete,
																					   this.lclMiNewDir,
																					   this.lclMiRen,
																					   this.lclMiRefresh,
																					   this.lclMiProps});
			// 
			// lclMiOpen
			// 
			this.lclMiOpen.Index = 0;
			this.lclMiOpen.Text = "Open";
			// 
			// lclMiUpload
			// 
			this.lclMiUpload.Index = 1;
			this.lclMiUpload.Text = "Upload";
			this.lclMiUpload.Click += new System.EventHandler(this.UploadFiles);
			// 
			// lclMiDelete
			// 
			this.lclMiDelete.Index = 2;
			this.lclMiDelete.Text = "Delete";
			// 
			// lclMiNewDir
			// 
			this.lclMiNewDir.Index = 3;
			this.lclMiNewDir.Text = "New Folder";
			// 
			// lclMiRen
			// 
			this.lclMiRen.Index = 4;
			this.lclMiRen.Text = "Rename";
			// 
			// lclMiRefresh
			// 
			this.lclMiRefresh.Index = 5;
			this.lclMiRefresh.Text = "Refresh";
			// 
			// lclMiProps
			// 
			this.lclMiProps.Index = 6;
			this.lclMiProps.Text = "Properties";
			// 
			// rmtListView
			// 
			this.rmtListView.BackColor = System.Drawing.SystemColors.Window;
			this.rmtListView.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
																						  this.columnHeader6,
																						  this.columnHeader7,
																						  this.columnHeader8,
																						  this.columnHeader9,
																						  this.columnHeader10});
			this.rmtListView.ContextMenu = this.rmtCtxtMnu;
			this.rmtListView.Dock = System.Windows.Forms.DockStyle.Fill;
			this.rmtListView.FullRowSelect = true;
			this.rmtListView.Location = new System.Drawing.Point(124, 0);
			this.rmtListView.Name = "rmtListView";
			this.rmtListView.Size = new System.Drawing.Size(692, 194);
			this.rmtListView.TabIndex = 2;
			this.rmtListView.View = System.Windows.Forms.View.Details;
			// 
			// columnHeader6
			// 
			this.columnHeader6.Text = "Name";
			this.columnHeader6.Width = 277;
			// 
			// columnHeader7
			// 
			this.columnHeader7.Text = "Size";
			this.columnHeader7.TextAlign = System.Windows.Forms.HorizontalAlignment.Right;
			this.columnHeader7.Width = 106;
			// 
			// columnHeader8
			// 
			this.columnHeader8.Text = "Type";
			// 
			// columnHeader9
			// 
			this.columnHeader9.Text = "Modified";
			this.columnHeader9.Width = 132;
			// 
			// columnHeader10
			// 
			this.columnHeader10.Text = "Permissions";
			this.columnHeader10.Width = 94;
			// 
			// rmtCtxtMnu
			// 
			this.rmtCtxtMnu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					   this.rmtMiOpen,
																					   this.rmtMiDownload,
																					   this.rmtMiDel,
																					   this.rmtMiRen,
																					   this.rmtMiNewDir,
																					   this.rmtMiRefresh,
																					   this.rmtMiProps});
			// 
			// rmtMiOpen
			// 
			this.rmtMiOpen.Index = 0;
			this.rmtMiOpen.Text = "Open";
			// 
			// rmtMiDownload
			// 
			this.rmtMiDownload.Index = 1;
			this.rmtMiDownload.Text = "Download";
			this.rmtMiDownload.Click += new System.EventHandler(this.DownloadFiles);
			// 
			// rmtMiDel
			// 
			this.rmtMiDel.Index = 2;
			this.rmtMiDel.Text = "Delete";
			// 
			// rmtMiRen
			// 
			this.rmtMiRen.Index = 3;
			this.rmtMiRen.Text = "Rename";
			// 
			// rmtMiNewDir
			// 
			this.rmtMiNewDir.Index = 4;
			this.rmtMiNewDir.Text = "New Folder";
			// 
			// rmtMiRefresh
			// 
			this.rmtMiRefresh.Index = 5;
			this.rmtMiRefresh.Text = "Refresh";
			// 
			// rmtMiProps
			// 
			this.rmtMiProps.Index = 6;
			this.rmtMiProps.Text = "Properties";
			// 
			// logSplitter
			// 
			this.logSplitter.Dock = System.Windows.Forms.DockStyle.Bottom;
			this.logSplitter.Location = new System.Drawing.Point(0, 362);
			this.logSplitter.Name = "logSplitter";
			this.logSplitter.Size = new System.Drawing.Size(816, 3);
			this.logSplitter.TabIndex = 1;
			this.logSplitter.TabStop = false;
			// 
			// lclPanel
			// 
			this.lclPanel.Controls.AddRange(new System.Windows.Forms.Control[] {
																				   this.lclListView,
																				   this.lclSplitter,
																				   this.lclTreeView});
			this.lclPanel.Dock = System.Windows.Forms.DockStyle.Bottom;
			this.lclPanel.Location = new System.Drawing.Point(0, 194);
			this.lclPanel.Name = "lclPanel";
			this.lclPanel.Size = new System.Drawing.Size(816, 168);
			this.lclPanel.TabIndex = 2;
			// 
			// lclSplitter
			// 
			this.lclSplitter.Location = new System.Drawing.Point(121, 0);
			this.lclSplitter.Name = "lclSplitter";
			this.lclSplitter.Size = new System.Drawing.Size(3, 168);
			this.lclSplitter.TabIndex = 1;
			this.lclSplitter.TabStop = false;
			this.lclSplitter.SplitterMoved += new System.Windows.Forms.SplitterEventHandler(this.UpdateSplitters);
			// 
			// rmtPanel
			// 
			this.rmtPanel.Controls.AddRange(new System.Windows.Forms.Control[] {
																				   this.rmtListView,
																				   this.rmtSplitter,
																				   this.rmtTreeView});
			this.rmtPanel.Dock = System.Windows.Forms.DockStyle.Fill;
			this.rmtPanel.Name = "rmtPanel";
			this.rmtPanel.Size = new System.Drawing.Size(816, 194);
			this.rmtPanel.TabIndex = 3;
			// 
			// rmtSplitter
			// 
			this.rmtSplitter.Location = new System.Drawing.Point(121, 0);
			this.rmtSplitter.Name = "rmtSplitter";
			this.rmtSplitter.Size = new System.Drawing.Size(3, 194);
			this.rmtSplitter.TabIndex = 1;
			this.rmtSplitter.TabStop = false;
			this.rmtSplitter.SplitterMoved += new System.Windows.Forms.SplitterEventHandler(this.UpdateSplitters);
			// 
			// splitter1
			// 
			this.splitter1.Name = "splitter1";
			this.splitter1.TabIndex = 0;
			this.splitter1.TabStop = false;
			// 
			// panelsSplitter
			// 
			this.panelsSplitter.Dock = System.Windows.Forms.DockStyle.Bottom;
			this.panelsSplitter.Location = new System.Drawing.Point(0, 191);
			this.panelsSplitter.Name = "panelsSplitter";
			this.panelsSplitter.Size = new System.Drawing.Size(816, 3);
			this.panelsSplitter.TabIndex = 5;
			this.panelsSplitter.TabStop = false;
			// 
			// JFtp
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(816, 469);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																		  this.panelsSplitter,
																		  this.rmtPanel,
																		  this.lclPanel,
																		  this.logSplitter,
																		  this.log});
			this.Menu = this.mainMenu;
			this.Name = "JFtp";
			this.Text = "jFTP";
			this.WindowState = System.Windows.Forms.FormWindowState.Maximized;
			this.Resize += new System.EventHandler(this.ReadjustSize);
			this.Load += new System.EventHandler(this.AdjustWindow);
			this.lclPanel.ResumeLayout(false);
			this.rmtPanel.ResumeLayout(false);
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new JFtp());
		}

		/// <summary>
		/// Keeps the splitters vertically equal
		/// </summary>
		/// <param name="sender">the splitter that raised the event</param>
		/// <param name="e">the event arguments</param>
		private void UpdateSplitters(object sender, System.Windows.Forms.SplitterEventArgs e)
		{
			if(sender == rmtSplitter)
			{
				if(splitterCounter <= 1)
				{
					++splitterCounter;
					lclSplitter.SplitPosition = rmtSplitter.SplitPosition;
				}
				else splitterCounter = 0;
				return;
			}
			else if(sender == lclSplitter)
			{
				if(splitterCounter <= 1)
				{
					++splitterCounter;
					rmtSplitter.SplitPosition = lclSplitter.SplitPosition;
				}
				else splitterCounter = 0;
				return;
			}
		}

		private void CreateHelper()
		{
			ftpConn = new ExtFtp.ExtEventHandler();
			jHandler = new ExtFtpIa.ExtIaEventHandler();
			jHandler.OnEndConnect += new CoreFtpIa.CoreIaEventHandler.EndConnectHandler(EndConnect);
			jHandler.OnDisconnected += new CoreFtpIa.CoreIaEventHandler.DisconnectedHandler(Disconnected);
			ftpConn.OnOutputClientCmd += new CoreFtp.FtpEventHandler.OutputMessageHandler(AddClassMsg);
			ftpConn.OnOutputMessage += new CoreFtp.FtpEventHandler.OutputMessageHandler(AddFtpCmd);
			ftpConn.OnOutputServerReply += new CoreFtp.FtpEventHandler.OutputMessageHandler(AddServerRply);
			jFtpHelper = new JFtpHelper(rmtTreeView, rmtListView, jHandler, ftpConn);
		}

		/// <summary>
		/// Adjusts the window panel sizes on load
		/// </summary>
		/// <param name="sender">the object that raised the event</param>
		/// <param name="e">the event arguments</param>
		private void AdjustWindow(object sender, System.EventArgs e)
		{			
			//int width = Width;
			int logHeight = (int) (Height * .2);
			int panelHeight = (int) (Height * .4);
			lclPanel.Height = panelHeight;
			rmtPanel.Height = panelHeight;
			log.Height = logHeight;
			logColumnHeader.Width = Width - 40;
			lclSplitter.SplitPosition = (int) (Width * .20);			
			return;
		}

		private void Disconnect(object sender, System.EventArgs e)
		{
			miDisconnect.Enabled = false;
			DisableRemoteMenuItems();
			//CleanUp();
			jFtpHelper.FtpCommandBuilder(FtpCmd.QUIT, null);			
		}

		private void Disconnected()
		{			
			DisableRemoteMenuItems();
			miDisconnect.Enabled = false;
			miConnect.Enabled = true;
			if(exiting) Application.Exit();
			//jFtpHelper = null;
			//ftpConn = null;
		}

		/// <summary>
		/// enables remote menu items such as open, delete, download, etc
		/// </summary>
		private void EnableRemoteMenuItems()
		{
			rmtMiDel.Enabled = true;
			rmtMiDownload.Enabled = true;
			rmtMiNewDir.Enabled = true;
			rmtMiOpen.Enabled = true;
			rmtMiProps.Enabled = true;
			rmtMiRefresh.Enabled = true;
			rmtMiRen.Enabled = true;
			lclMiUpload.Enabled = true;
		}

		/// <summary>
		/// disables remote menu items such as new folder, download, rename, etc
		/// </summary>
		private void DisableRemoteMenuItems()
		{
			rmtMiDel.Enabled = false;
			rmtMiDownload.Enabled = false;
			rmtMiNewDir.Enabled = false;
			rmtMiOpen.Enabled = false;
			rmtMiProps.Enabled = false;
			rmtMiRefresh.Enabled = false;
			rmtMiRen.Enabled = false;
			lclMiUpload.Enabled = false;
		}

		/// <summary>
		/// Converts a filesize to a string
		/// </summary>
		/// <param name="size"></param>
		/// <returns></returns>
		public static string GenerateFileSize(long size)
		{
			System.Globalization.NumberFormatInfo numFormat = new System.Globalization.NumberFormatInfo();
			numFormat.NumberDecimalDigits = 0;
			//between 0 and 10,000 bytes
			if(size < 10000) return size.ToString("n", numFormat);
			//is less than 10,000,000
			if(size < 10000000) 
			{
				size = size/1000;
				return size.ToString("n", numFormat) + " KB";
			}
			//is less than 1,000,000,000
			if(size < 1000000000)
			{
				size = size/1000000;
				return size.ToString("n", numFormat) + " MB";
			}
			//is more 1,000,000,000
			size = size/1000000000;
			return size.ToString("n", numFormat) + " GB";
		}	

		/// <summary>
		/// Connects to a FTP server
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		private void Connect(object sender, System.EventArgs e)
		{
			log.Items.Clear();
			ConnectWindow connWindow = new ConnectWindow();
			DialogResult ans = connWindow.ShowDialog();
			log.Text = "";
			CreateHelper();
			miConnect.Enabled = false;
			//user clicked ok
			if(ans == DialogResult.OK)
			{
				miConnect.Enabled = false;
				ip = connWindow.ip.Text;
				string un = connWindow.userName.Text;
				string pwd = connWindow.pwd.Text;
				string dir = connWindow.dDir.Text;
				int port;
				try
				{
					port = int.Parse(connWindow.port.Text);
				}
				catch(Exception)
				{
					miConnect.Enabled = true;
					return;
				}
				pasv = connWindow.pasv.Checked;
				log.Text = "";
				CreateHelper();
				jFtpHelper.Connect(ip, port, un, pwd, connWindow.pasv.Checked, dir);
			}
			else miConnect.Enabled = true;
		}

		/// <summary>
		/// Connected to server
		/// </summary>
		private void EndConnect(bool success)
		{
			//to get list
			if(success)
			{
				EnableRemoteMenuItems();
			}
			else
			{
				miDisconnect.Enabled = false;				
				miConnect.Enabled = true;
			}
			return;
		}

		
		private void UploadFiles(object sender, System.EventArgs e)
		{
			if((sender == lclMiUpload) && (lclListView.SelectedItems.Count > 0))
			{
				ListView.SelectedListViewItemCollection items = lclListView.SelectedItems;
				string path = lclTreeView.SelectedNode.FullPath;
				string[] files = new string[items.Count];
				for(int i = 0; i < items.Count; i++)
					files[i] = path + "\\" + items[i].Text;				
				jFtpHelper.SendFiles(files);
				return;
			}
		}

		private void DownloadFiles(object sender, System.EventArgs e)
		{
			if((sender == rmtMiDownload) && (rmtListView.SelectedItems.Count > 0))
			{
				ListView.SelectedListViewItemCollection items = rmtListView.SelectedItems;
				ListViewItem item = items[0];
				string path = jFtpHelper.GetSelectedDirectory();
				if(path == "/") path+=item.Text;
				else path = path + "/" + item.Text;
				string cwd = lclTreeView.SelectedNode.FullPath;
				if(!cwd.EndsWith("\\")) cwd+="\\";
				string[] files = new String[] {path};
				jFtpHelper.GetFiles(files, cwd);
				return;
			}
		}


		private void ReadjustSize(object sender, System.EventArgs e)
		{
			int logHeight = (int) (Height * .2);
			int panelHeight = (int) (Height * .4);
			lclPanel.Height = panelHeight;
			rmtPanel.Height = panelHeight;
			log.Height = logHeight;
			logColumnHeader.Width = Width - 40;
			lclSplitter.SplitPosition = (int) (Width * .20);
		}

		/// <summary>
		/// prepares the class for a disconnect
		/// </summary>
		private void CleanUp()
		{
			DisableRemoteMenuItems();
			lclMiUpload.Enabled = false;
			miDisconnect.Enabled = false;
		}

		private void ScrollLogToBottom()
		{			
			const System.Int32 WM_VSCROLL = 0x115;
			const System.Int32 SB_BOTTOM = 0x7;
			SendMessage(log.Handle, WM_VSCROLL, SB_BOTTOM , 0);
		}

		//Blue
		/// <summary>
		/// Receives commands sent by the program
		/// </summary>
		/// <param name="text"></param>
		private void AddFtpCmd(string text)
		{
			ListViewItem item = new ListViewItem(text);
			item.ForeColor = System.Drawing.Color.Blue;			
			logItem = item;
			log.Invoke(new AddToLogHandler(AddLogItem));
			return;
		}

		private void AddLogItem()
		{
			log.Items.Add(logItem);
			ScrollLogToBottom();
			return;
		}

		//DarkGreen
		/// <summary>
		/// receives FTP commands gegenrated by the client
		/// </summary>
		/// <param name="text"></param>
		private void AddClassMsg(string text)
		{
			ListViewItem item = new ListViewItem(text);
			item.ForeColor = System.Drawing.Color.DarkGreen;
			logItem = item;
			log.Invoke(new AddToLogHandler(AddLogItem));
			return;
		}

		//black
		/// <summary>
		/// receieves messages sent from the server
		/// </summary>
		/// <param name="text"></param>
		private void AddServerRply(string text)
		{
			ListViewItem item = new ListViewItem(text);
			if(text.StartsWith("550")) item.ForeColor = System.Drawing.Color.DarkRed;
			else item.ForeColor = System.Drawing.Color.Black;
			logItem = item;
			log.Invoke(new AddToLogHandler(AddLogItem));
			return;
		}

		private void miExit_Click(object sender, System.EventArgs e)
		{
			miExit.Enabled = false;
			if(miConnect.Enabled)
				Application.Exit();
			exiting = true;
			//begin clean up of stuff
			if(miDisconnect.Enabled)
				if(jFtpHelper.JFtpHelperStatus == JFtpHelper.JFtpHelperStatusModes.Ready)
					jFtpHelper.FtpCommandBuilder(FtpCmd.QUIT, null);
			return;
		}

	}
}