【原創】文件系統-目錄文件快速複製轉移工具

最近因為公司圖文服務器空間緊張，需要將備份目錄下的所有文件按照目錄結構全部轉移，但是原地址的目錄結構保持不變，在網上搜索無果的情況下，決定自己動手製作一個；

UI畫面：


主要用到的命名空間：
using System.IO;



步驟詳解：
1、循環來源目錄的所有目錄及文件，重點取得需要轉移的文件數，以便下一步初始化列舉數；
2、循環來源目錄的所有目錄，同時取得目錄數和文件大小，并產生需要轉移的文件列表string[列舉數]；
3、依照文件列表開線程建立目錄并轉移文件（判斷是否覆蓋【5】），計算轉移百分比；
4、這兩個是解決難點，方案兩種，一種同步刪除，但必須有順序，二、在轉移完成后再統一循環處理；我采取的是第二種，特別是刪除目錄時，必須保證目錄里不存在任何文件才能直接刪除；

關鍵代碼：
1、File.Copy(sourceFileName, destFileName, checkBox3.Checked);
2、

DownThread = new Thread(new ThreadStart(StartUpdate));
DownThread.Start();

private void StartUpdate()
        {
            try
            {

                toolStripStatusLabel1.Text = "正在初始化文件列表";
                CountFiles();

                b_IsFinished = false;

                try
                {

                    BeginInvoke(new System.EventHandler(UpdateUI), lblFileNum);


              

                    BeginInvoke(new System.EventHandler(UpdateUI), lblDownLoad);

                    toolStripStatusLabel1.Text = "正在分配列舉緩存";
                    m_Files = NewFiles();//需要更新的文件


                    if (m_Files != null)
                    {
                        b_Started = true;

                        BeginInvoke(new System.EventHandler(UpdateUI), lblStartExe);

                        m_intFilesCount = m_Files.Length;

                        bool b_f = false;
                        for (int i = 0; i <= m_intFilesCount - 1; i++)
                        {
                            if (b_Pause)
                            {
                                b_f = false;
                                break;
                            }

                            if (m_Files[i] != null)
                            {
                                m_downingFileName = m_Files[i];

                                BeginInvoke(new System.EventHandler(UpdateUI), lblStartExe);

                                string root = p_PathFrom;
                                string sourceFileName = p_PathFrom + m_Files[i];
                                string destFileName = p_PathTo + m_Files[i];
                                string NodeFilePath = m_Files[i].Substring(0, m_Files[i].LastIndexOf("\\"));
                                string deleteDirectory = p_PathFrom + NodeFilePath;

                                FileInfo fi = new FileInfo(p_PathFrom + "\\" + m_Files[i]);

                                m_downingFileSize = (int)fi.Length;
                                subPrgBar();


                                try
                                {
                                    if (!Directory.Exists(p_PathTo + NodeFilePath))
                                    {
                                        Directory.CreateDirectory(p_PathTo + NodeFilePath);
                                    }

                                    if (File.Exists(destFileName))
                                    {
                            
                                    }

                                    File.Copy(sourceFileName, destFileName, checkBox3.Checked);
                                }
                                catch { }

                                try
                                {
                                    if (checkBox1.Checked)
                                    {
                                        if (File.Exists(sourceFileName))
                                        {
                                            File.Delete(sourceFileName);
                                        }
                                    }

                                    if (checkBox2.Checked)
                                    {
                                        if (Directory.Exists(deleteDirectory))
                                        {
                                            Directory.Delete(deleteDirectory);
                                        }
                                    }

                        
                                }
                                catch
                                { }

                  

                                Debug.WriteLine(m_Files[i]);
                            }

                            b_f = true;
                        }

                        

                        if (b_f)//批量刪除目錄
                        {
                            for (int i = m_intFilesCount - 1; i >= 0; i--)
                            {
                                if (b_Pause)
                                {
                                    break;
                                }

                                if (m_Files[i] != null)
                                {
                                    if (m_Files[i] != null)
                                    {
                                        m_downingFileName ="正在刪除來源目錄："+m_Files[i];

                                        BeginInvoke(new System.EventHandler(UpdateUI), lblStartExe);

                                        string root = p_PathFrom;
                                        string sourceFileName = p_PathFrom + m_Files[i];
                                        string destFileName = p_PathTo + m_Files[i];
                                        string NodeFilePath = m_Files[i].Substring(0, m_Files[i].LastIndexOf("\\"));
                                        string deleteDirectory = p_PathFrom + NodeFilePath;


                                        try
                                        {
                                            if (checkBox1.Checked)
                                            {
                                                if (File.Exists(sourceFileName))
                                                {
                                                    File.Delete(sourceFileName);
                                                }
                                            }

                                            if (checkBox2.Checked)
                                            {
                                                if (Directory.Exists(deleteDirectory))
                                                {
                                                    Directory.Delete(deleteDirectory);
                                                }
                                            }

                             
                                        }
                                        catch
                                        { }

                                    }
                                }

                                
                            }

                            b_f = false;
                        }

                     
                    }


                }
                catch (Exception ex)
                {
                    
                        BeginInvoke(new EventHandler(OnShowMessage), ex.Message);
                    

                    return;
                }

                //UI線程設置label屬性

                BeginInvoke(new System.EventHandler(UpdateUI), lblStartExe);


                BeginInvoke(new EventHandler(OnShowMessage), "複製成功！");
                
            }
            catch(Exception ex)
            {
                BeginInvoke(new EventHandler(OnShowMessage), "錯誤！" + ex.Message);
            }

            b_GlobalFinished = true;
            BeginInvoke(new System.EventHandler(UpdateUI), lblStartExe);
        }

 

        private void UpdateUI(object sender, EventArgs e)
        {

            Label lbl = (Label)sender;

            lbl.ForeColor = SystemColors.Desktop;

            if (b_Started)
            {
                toolStripStatusLabel1.Text = m_downingFileName.ToString();
            }

            lblPathNum.Text = m_intPathsCount.ToString() + " 個目錄";
            lblFileNum.Text = m_intFilesCount.ToString() + " 個文件";
            lblDownLoad.Text = "總計 " + GetFileSize(m_AllFileSize) + "";
            lblStartExe.Text = "已經複製 " + GetFileSize(m_downedFileSize) + "";

            if (b_GlobalFinished)
            {
                button1.Enabled = true;
                button5.Enabled = false;
            }

        }

public void AllFileSize()
        {
            int filesize = 0;

            DirectoryInfo di = new DirectoryInfo(p_PathFrom);

            FileInfo[] fi = di.GetFiles();
            int intFiles = fi.Length;
            foreach (FileInfo fiTemp in fi)
            {
                if (b_Pause)
                {
                    break;
                }

                filesize += (int)fiTemp.Length ;

            }

            m_AllFileSize = filesize;

            DirectoryInfo[] ddi = di.GetDirectories();
            foreach (DirectoryInfo diTemp in ddi)
            {
                if (b_Pause)
                {
                    break;
                }

                filesize = FilesAllFileSize(filesize, diTemp.FullName);

            }

            m_AllFileSize = filesize;

        }

        public int FilesAllFileSize(int filesize, string NodeUpdateServerPath)
        {

            DirectoryInfo di = new DirectoryInfo(NodeUpdateServerPath);

            FileInfo[] fi = di.GetFiles();
            int intFiles = fi.Length;
            foreach (FileInfo fiTemp in fi)
            {
                if (b_Pause)
                {
                    break;
                }

                filesize += (int)fiTemp.Length ;


            }

            m_AllFileSize = filesize;

            DirectoryInfo[] ddi = di.GetDirectories();
            foreach (DirectoryInfo diTemp in ddi)
            {
                if (b_Pause)
                {
                    break;
                }

                filesize = FilesAllFileSize(filesize, diTemp.FullName);

            }

            m_AllFileSize = filesize;

            return filesize;
        }