ftpClass

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace AR_Tool
{
    class ftpClient
    {


        Uri uri;
        ProgressBar progressbar;
        MyWebClient webclient;
        string url;
        string path;
        string username;
        string password;
        NetworkCredential netcredentials;

        public ftpClient(string url, string path, string username, string password, ProgressBar progressbar)
        {
            this.url = url;
            this.path = path;
            this.username = username;
            this.password = password;
            this.progressbar = progressbar;
            webclient = new MyWebClient();
            netcredentials = new NetworkCredential(username, password);
            webclient.Credentials = netcredentials;
            uri = new Uri(url);
            this.progressbar.Minimum = 0;
            this.progressbar.Maximum = 100;
            this.progressbar.Value = 0;


        }

        public async void DownloadFile()
        {
            try
            {
                webclient.DownloadProgressChanged += (s, t) =>
                {

                    progressbar.Value = t.ProgressPercentage;

                };
                webclient.DownloadFileCompleted += (s, t) =>
                {
                    progressbar.Visible = true;
                    progressbar.Value = 0;

                };
                await webclient.DownloadFileTaskAsync(uri, path);
            }
            catch (Exception c)
            {
                MessageBox.Show("Connessione ad internet non disponibile, riprovare");
            }
        }



        internal class MyWebClient : WebClient
        {
            protected override WebRequest GetWebRequest(Uri address)
            {
                FtpWebRequest req = (FtpWebRequest)base.GetWebRequest(address);
                req.UsePassive = false;
                return req;
            }
        }
    }
}