只复制某些文件和文件夹的程序C＃

Question

private void btn_Backup_Click(object sender, EventArgs e) 
    { 
     List<DirectoryInfo> SourceDir = this.lbox_Sources.Items.Cast<DirectoryInfo>().ToList(); 
     List<DirectoryInfo> TargetDir = this.lbox_Targets.Items.Cast<DirectoryInfo>().ToList(); 


     foreach (DirectoryInfo sourcedir in SourceDir) 
     { 
      foreach (DirectoryInfo targetdir in TargetDir) 
      { 
       string dateString = DateTime.Now.ToString("MM-dd-yyyy_H.mm.ss"); 

       if (this.checkbox_zipfiles.Checked == true) 
       { 
        System.IO.Compression.ZipFile.CreateFromDirectory(sourcedir.FullName, targetdir.FullName + @"\BACKUP_" + sourcedir.Name + @"_" + dateString + @".zip"); 

        LogBackup(); 
       } 
       else 
       { 
        foreach (var file in sourcedir.GetFiles() 
         .Where(f => !extensionsToSkip.Contains(f.Extension) && !filesToSkip.Contains(f.FullName)).ToList()) 
        { 
         file.CopyTo(targetdir.FullName + @"\" + file.Name, true); 
         LogBackup(); 
        } 
       } 
      } 
     } 

到目前为止，我的代码只适用于文件，如何使它适用于文件夹和子文件夹以及文件夹中的文件？

Answer 1

你可以写这样的复制递归函数（伪代码）

public void CopyData(string sourceDirectoryPath, string desDirectoryPath) 
{ 
    foreach File in sourceDirectoryPath 
    { 
     copy to desDirectoryPath 
    } 

    foreach currentDirectory in sourceDirectoryPath 
    { 
     // recursive function 
     CopyData(currentDirectory, correspondingdesDirectoryPath) 
    } 
} 

Answer 2

我没有测试代码，但它会是这个样子：

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; 

namespace divideSquare 
{ 
    public partial class Form1 : Form 
    { 
     public Form1() 
     { 
      InitializeComponent(); 
     } 
     private void btn_Backup_Click(object sender, EventArgs e) 
     { 
      List<DirectoryInfo> SourceDir = this.lbox_Sources.Items.Cast<DirectoryInfo>().ToList(); 
      List<DirectoryInfo> TargetDir = this.lbox_Targets.Items.Cast<DirectoryInfo>().ToList(); 

      for(int i = 0; i < SourceDir.Count(); i++) 
      { 
       DirectoryInfo sourcedir = SourceDir[i]; 
       DirectoryInfo targetdir = TargetDir[i]; 
       RecursiveZip(sourcedir, targetdir); 
      } 
     } 
     private void RecursiveZip(DirectoryInfo sourcedir, DirectoryInfo targetdir) 
     { 
       string dateString = DateTime.Now.ToString("MM-dd-yyyy_H.mm.ss"); 

       if (this.checkbox_zipfiles.Checked == true) 
       { 
        System.IO.Compression.ZipFile.CreateFromDirectory(sourcedir, targetdir.FullName + @"\BACKUP_" + sourcedir.Name + @"_" + dateString + @".zip"); 

        LogBackup(); 
       } 
       else 
       { 
        foreach (var file in sourcedir.GetFiles() 
         .Where(f => !extensionsToSkip.Contains(f.Extension) && !filesToSkip.Contains(f.FullName)).ToList()) 
        { 
         file.CopyTo(targetdir.FullName + @"\" + file.Name, true); 
         LogBackup(); 
        } 
        foreach(DirectoryInfo folder in sourcedir.GetDirectories()) 
        { 
         RecursiveZip(folder, new DirectoryInfo(targetdir.FullName + "\\" + folder.Name)); 
        } 
       } 
     } 

}