winform文件迁移工具

服务器D盘上传的文件过多，空间剩下很少了，于是想把里面部分文件，大概几万个文件转移到E盘，做了这个小工具。先查询出要转移的文件清单，保存在一个记事本中，如下所示：

接着读取文件名，一个个移动到指定目录中去，winform窗体布局及效果如下：

完整代码如下：

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

namespace FileMoveTools
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        #region 目录        
        private void btnBrowseSrcDir_Click(object sender, EventArgs e)
        {           
            using (FolderBrowserDialog dialog = new FolderBrowserDialog())
            {
                if (dialog.ShowDialog() == DialogResult.OK)
                   txtSrcDir.Text = dialog.SelectedPath;
            }
        }

        private void btnBrowseFile_Click(object sender, EventArgs e)
        {
            using (OpenFileDialog openFileDialog = new OpenFileDialog())
            {
                openFileDialog.Filter = "Text (*.txt)|*.txt;";
                openFileDialog.AddExtension = true;
                openFileDialog.RestoreDirectory = true;
                if (openFileDialog.ShowDialog() == DialogResult.OK)
                {
                    txtFile.Text = openFileDialog.FileName;
                }
            }  
        }

        private void btnSetDestDir_Click(object sender, EventArgs e)
        {
            using (FolderBrowserDialog dialog = new FolderBrowserDialog())
            {
                if (dialog.ShowDialog() == DialogResult.OK)
                    txtDestDir.Text = dialog.SelectedPath;
            }
        }
        #endregion

        private void btnOK_Click(object sender, EventArgs e)
        {
            Thread mythread = new Thread(MoveFile);
            mythread.IsBackground = true;
            mythread.Start();    
        }

        private void MoveFile()
        {
            string srcDir = txtSrcDir.Text.Trim();
            string destDir = txtDestDir.Text.Trim();
            string files = txtFile.Text.Trim();

            #region 验证路径是否存在
            if (!Directory.Exists(srcDir))
            {
                statusMsg.Text = "要迁移的目录不存在";
                return;
            }
            if (!Directory.Exists(destDir))
            {
                statusMsg.Text = "迁移后的目录不存在";
                return;
            }
            if (!File.Exists(files))
            {
                statusMsg.Text = "文件清单不存！";
                return;
            }
            #endregion

            statusMsg.Text = "文件开始迁移..";
            int count = 0;
            using (StreamReader sr = new StreamReader(files, Encoding.UTF8))
            {
                string strline = null;
                while ((strline = sr.ReadLine()) != null)
                {
                    long diskFreeSpace = GetHardDiskFreeSpace("D");
                    if (diskFreeSpace <= 5)
                    {
                        statusMsg.Text = "硬盘空间剩下5GB，停止迁移文件.";
                        return;
                    }
                    
                    string sourceFileName = srcDir + "/" + strline;
                    string destFileName = destDir + "/" + strline;
                    if (File.Exists(sourceFileName))
                    {
                        count++;
                        statusMsg.Text = "当前迁移第 " + count + " 个文件";

                        File.Move(sourceFileName, destFileName);
                    }
                }
            }
            this.Invoke(new Action(() =>
            {
                statusMsg.Text = "迁移了 " + count + " 个文件，完成";
            }));  
        }
      
        ///  <summary> 
        /// 获取指定驱动器的剩余空间总大小(单位为GB) 
        ///  </summary> 
        ///  <param name="str_HardDiskName">只需输入代表驱动器的字母即可 </param> 
        ///  <returns> </returns> 
        private static long GetHardDiskFreeSpace(string str_HardDiskName)
        {
            long freeSpace = new long();
            str_HardDiskName = str_HardDiskName + ":\";
            System.IO.DriveInfo[] drives = System.IO.DriveInfo.GetDrives();
            foreach (System.IO.DriveInfo drive in drives)
            {
                if (drive.Name == str_HardDiskName)
                {
                    freeSpace = drive.TotalFreeSpace / (1024 * 1024 * 1024);
                }
            }
            return freeSpace;
        } 
    }
}