C#

string MyFile = @"d:\PC.sdf";

            string url = "ftp://127.0.0.1/PC.sdf";
            FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create(url);

            request.Method = WebRequestMethods.Ftp.UploadFile;
            //request.Credentials = new NetworkCredential("user name", "password");
            request.UsePassive = true;
            request.UseBinary = true;
            request.KeepAlive = false;

            //byte[] buffer = File.ReadAllBytes(MyFile);

            using (Stream reqStream = request.GetRequestStream())
            {
                int count = 0;
                byte[] buffer = new byte[100];
                using (FileStream file = new FileStream(MyFile, FileMode.Open))
                {
                    while ((count = file.Read(buffer, 0, 100)) > 0)
                    {
                        reqStream.Write(buffer, 0, count);
                    }
                }

            }

uint begin = 293844; OR 29388493 // Can be different size

uint shorter = 2938;

uint select = 2339 (skip every other digit).

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.IO;
using System.Net;
using System.Web.UI.WebControls;


namespace ftpPractice
{
    public partial class _Default : System.Web.UI.Page
    {
       
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        public void uploadFileUsingFTP(String CompleteFTPPath, String CompleteLocalPat)
        {
            try
            {
                //Create a FTP Request Object and Specfiy a Complete Path
                FtpWebRequest reqObj = WebRequest.Create(CompleteFTPPath) as FtpWebRequest;

                //Call A FileUpload Method of FTP Request Object 
                reqObj.Method = WebRequestMethods.Ftp.UploadFile;

                //If you want to access Resourse Protected You need to give User Name  and PWD
                reqObj.Credentials = new NetworkCredential("Akosidan", "newbie");

                //File Stream obj read the file from local drive
                FileStream streamObj = File.OpenRead(CompleteLocalPat);

                //Store File in Buffer
                byte[] buffer = new byte[streamObj.Length];

                // Read File from Buffer
                streamObj.Read(buffer, 0, buffer.Length);

                //Close FileStream Object Set its Value to nothing
                streamObj.Close();
                streamObj = null;

                //Upload File to ftp://localHost/ set its object to nothing
                reqObj.GetRequestStream().Write(buffer, 0, buffer.Length);
                reqObj = null;

                lblMessage.Text= "File Uploaded Successfully :)";
            }
            catch (Exception error)
            {
                Response.Write(error.ToString());
            }
            
            //fs.Close();
            //Stream ftpstream = ftp.GetRequestStream();
            //ftpstream.Write(buffer, 0, buffer.Length);
            //ftpstream.Close(); 

           
        }

        protected void cmdUpload_Click(object sender, EventArgs e)
        {
            uploadFileUsingFTP("ftp://localhost/recieveSample.txt", "C:\\someUsers\\someFolder\\Desktop\\sample.txt");
            
            
          
        }

        
    }
}