using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Threading;

namespace CopyFilesDialog
{
    public partial class CopyDialog : Form
    {
        public CopyDialog()
        {
            InitializeComponent();
        }

        private delegate void InCp(string fileName);
        private Thread newTh;

        private void btnCopy_Click(object sender, EventArgs e)
        {
            OpenFileDialog Fd = new OpenFileDialog();
            Fd.Title = "Выберите файл";
            Fd.InitialDirectory = @"C:\";
            Fd.Multiselect = true;

            string[] files;
            if (Fd.ShowDialog() == DialogResult.OK)
            {
                files = Fd.FileNames;
                progresPart.Maximum = files.Length;

                progresPart.Value = 0;
                newTh = new Thread(new ParameterizedThreadStart(CopyFiles));
                newTh.Start(files);
            }
        }

        private void CopyFiles(object _files)
        {
            string[] files = (string[])_files;
            foreach (string fi in files)
            {
                cp(fi);
            }
        }

        private void cp(string path)
        {
            if (progresPart.InvokeRequired)
            {
                InCp add = new InCp(cp);
                this.Invoke(add, new object[] { path });
            }
            else
            {
                string dest = @"C:\Temp";
                try
                {
                    if (Directory.Exists(path) == false)
                    {
                        if (File.Exists(path) == true)
                        {
                            string[] pathSplit = path.Split(new Char[] { '\\' });
                            string lastFile = pathSplit[pathSplit.Length - 1];
                            File.Copy(path, dest + '\\' + lastFile);
                        }
                    }
                    else
                    {
                        //рекурсивное копирование папки
                        string[] pathSplit = path.Split(new Char[] { '\\' });
                        string lastDir = pathSplit[pathSplit.Length - 1];
                        string ToDir = dest + '\\' + lastDir;
                        CopyDir(path, ToDir);
                    }
                    progresPart.Value++;
                    progresPart.Update();
                }
                catch (Exception ex)
                {
                    MessageBox.Show("Ошибка: " + ex.Message);
                }

                progresPart.Update();
            }
        }


        //рекурсивное копирование папки
        void CopyDir(string FromDir, string ToDir)
        {
            Directory.CreateDirectory(ToDir);
            foreach (string s1 in Directory.GetFiles(FromDir))
            {
                string s2 = ToDir + "\\" + Path.GetFileName(s1);
                File.Copy(s1, s2);
            }
            foreach (string s in Directory.GetDirectories(FromDir))
            {
                CopyDir(s, ToDir + "\\" + Path.GetFileName(s));
            }
        }

        private void btnCancel_Click(object sender, EventArgs e)
        {
            if (newTh.IsAlive)
                newTh.Abort();
            btnCancel.Visible = false;
        }
    }
}