Question

程序浏览目录并将Avi文件打印到文本框



    public FileList()
    {
        InitializeComponent();
        //Sets Drive Choices
        DriveInfo[] drives = DriveInfo.GetDrives();
        foreach (DriveInfo d in drives)
        {
            driveChoice.Items.Add(d);
        }
    }

    //Find Video Files
    private void btnStart_Click(object sender, EventArgs e)
    {            
        String path = driveChoice.Text;
        if (path != "C:\\")
        {
            String[] allfiles = Directory.GetFiles(path, "*.avi*", System.IO.SearchOption.AllDirectories);
            foreach (String file in allfiles)
            {
                tbFileList.Text = tbFileList.Text + file + "\r\n";
            }
        }
        else
        {
            Application.Exit();
        }

    }
}

public FileList() { InitializeComponent(); //Sets Drive Choices DriveInfo[] drives = DriveInfo.GetDrives(); foreach (DriveInfo d in drives) { driveChoice.Items.Add(d); } } //Find Video Files private void btnStart_Click(object sender, EventArgs e) { String path = driveChoice.Text; if (path != "C:\\") { String[] allfiles = Directory.GetFiles(path, "*.avi*", System.IO.SearchOption.AllDirectories); foreach (String file in allfiles) { tbFileList.Text = tbFileList.Text + file + "\r\n"; } } else { Application.Exit(); } } }

跑步时我收到错误。

未经授权访问'I：\ $ RECYCLE.BIN \ S-1-5-21-1332477098-3306142970-3529014387-1000 \'

我可以将程序设置为跳过'I：\ $ RECYCLE.BIN'

Answer 1

现在没有办法让AllDirectories选项跳过特定目录或忽略遍历时发生的异常。您需要手动搜索目录结构并处理发生的错误

Answer 2

看起来你需要切换到递归解决方案或其他循环，而不是使用'AllDirectories'。这样你就可以提供一些跳过逻辑。

请参阅此链接http://support.microsoft.com/kb/303974

以及该页面中的以下代码段：

void DirSearch(string sDir) 
    {
        try 
        {
            foreach (string d in Directory.GetDirectories(sDir)) 
            {
                foreach (string f in Directory.GetFiles(d, txtFile.Text)) 
                {
                    lstFilesFound.Items.Add(f);
                }
                DirSearch(d);
            }
        }
        catch (System.Exception excpt) 
        {
            Console.WriteLine(excpt.Message);
        }
    }

在该代码中，您只需检查您的sDir以查找要跳过的值。

Answer 3

if !filePath.Contains("I:\$RECYCLE.BIN")

Answer 4

使用lambda语句排除系统目录：

public FileList()
{
    InitializeComponent();
    //Sets Drive Choices
    DriveInfo[] drives = DriveInfo.GetDrives();
    foreach (DriveInfo d in drives)
    {
        driveChoice.Items.Add(d);
    }
}

//Find Video Files
private void btnStart_Click(object sender, EventArgs e)
{            
    String path = driveChoice.Text;
    if (path != "C:\\")
    {
        DirectoryInfo root = new DirectoryInfo(path);
        var rootFiles = root.GetFiles("*.avi");
        var rootDirs = root.GetDirectories("*", SearchOption.TopDirectoryOnly).Where(d => !d.Name.Equals("System Volume Information") && !d.Name.Equals("$RECYCLE.BIN"));
        foreach (var file in rootFiles)
        {
            tbFileList.Text = tbFileList.Text + file.FullName + "\r\n";
        }
        foreach (var dir in rootDirs)
        {
            foreach (var dirFile in dir.GetFiles("*.avi", SearchOption.AllDirectories))
            {
                tbFileList.Text = tbFileList.Text + dirFile.FullName + "\r\n";
            }
        }

    }
    else
    {
        Application.Exit();
    }

}

Answer 5

我刚尝试使用Lambda表达式，将VS 2017中返回的字符串列表中的两个文件夹都排除在外。如果将lambda表达式直接添加到目录的检索中，如列表中上方的字符串所示，列表仍将返回$ RECYCLEBIN，但是不会返回SVI文件夹。为了使lambda正常工作，我需要将2个操作分开，即：

 var allDirs = rootDir.GetDirectories("*",SearchOption.TopDirectoryOnly);
 var filteredDirs = allDirs.Where(d=> !d.Name.Equals("System Volume Information") && !d.Name.Equals("$RECYCLE.BIN"));

使C＃搜索硬盘驱动器排除目录

5 个答案: