FtpClient for .NET

 

The example represents a C# .NET FTP client, which can log in to an FTP server, browse remote directories, download remote files, and upload local files to a selected FTP directory.

 

 

private void btnLogin_Click(object sender, System.EventArgs e) 
{
	ftp1.Port = Convert.ToInt32(edtPort.Text);
	ftp1.Server = edtServer.Text;
	ftp1.UserName = edtUser.Text;
	ftp1.Password = edtPassword.Text;
	ftp1.PassiveMode = cbPassiveMode.Checked;
	ftp1.Open();

	DoOpenDir(edtStartDir.Text);
}

private void DoOpenDir(string ADir) 
{
	string dir = ADir.TrimStart('/');
	if (!StringUtils.IsEmpty(dir)) 
	{
		ftp1.ChangeCurrentDir(dir);
	}
	FillDirList();
}

private void FillDirList() 
{
	lbList.Items.Clear();
	ftp1.GetDirectoryListing("");
	edtStartDir.Text = ftp1.CurrentDir;
}

 

private void btnDownload_Click(object sender, System.EventArgs e) 
{
	if ((lbList.SelectedIndex > -1) &&
	   (lbList.Items[lbList.SelectedIndex].ToString() != "") &&
	   (lbList.Items[lbList.SelectedIndex].ToString()[0] != '/')) 
	{

		saveFileDialog1.FileName = lbList.Items[lbList.SelectedIndex].ToString();
		if (saveFileDialog1.ShowDialog() == DialogResult.OK) 
	        {
			int size = (int)ftp1.GetFileSize(
	   	        lbList.Items[lbList.SelectedIndex].ToString());
    
			using(FileStream dest = new FileStream(saveFileDialog1.FileName,
	    	        FileMode.Create)) 
	   	        {
				   ftp1.GetFile(lbList.Items[lbList.SelectedIndex].ToString(),
	   	   	   	   dest);
			}
			MessageBox.Show("Done");
		}
	 }
}

private void btnUpload_Click(object sender, System.EventArgs e) 
{
	if(openFileDialog1.ShowDialog() == DialogResult.OK) 
	{
	string fileName = Path.GetFileName(openFileDialog1.FileName);

	FileInfo fileInf = new FileInfo(openFileDialog1.FileName);

	using(FileStream source = new FileStream(openFileDialog1.FileName,
        FileMode.Open, FileAccess.Read)) 
	{
		ftp1.PutFile(source, fileName);
	}
	MessageBox.Show("Done");

	FillDirList();
	}
}

 

The Ftp.DirectoryListing event is used for retrieving information about each file entry within the directory. A handler code for this event looks like the following.

 

private void ftp1_DirectoryListing(object sender, 
                                   CleverComponents.InetSuite.DirectoryListingEventArgs e) 
{
	string item = ((e.FileInfo.IsDirectory || e.FileInfo.IsLink) ? "/" : "") 
        + e.FileInfo.FileName;
	lbList.Items.Add(item);
}

 

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Clever Components team
www.CleverComponents.com