从目录中获取文件时排除某些文件扩展名

Question

How to exclude certain file type when getting files from a directory?

I tried

var files = Directory.GetFiles(jobDir);

But it seems that this function can only choose the file types you want to include, not exclude.

Answer 1

你应该自己过滤这些文件，你可以这样写：

    var files = Directory.GetFiles(jobDir).Where(name => !name.EndsWith(".xml"));

Answer 2

I know, this a old request, but about me it's always important.

if you want exlude a list of file extension: (based on https://stackoverflow.com/a/19961761/1970301 )

var exts = new[] { ".mp3", ".jpg" };



public IEnumerable<string> FilterFiles(string path, params string[] exts) {
    return
        Directory
        .GetFiles(path)
        .Where(file => !exts.Any(x => file.EndsWith(x, StringComparison.OrdinalIgnoreCase)));
}

Answer 3

You could try something like this:

  var allFiles = Directory.GetFiles(@"C:\Path\", "");
  var filesToExclude = Directory.GetFiles(@"C:\Path\", "*.txt");
  var wantedFiles = allFiles.Except(filesToExclude);

Answer 4

我猜你可以使用 lambda 表达式

var files = Array.FindAll(Directory.GetFiles(jobDir), x => !x.EndWith(".myext"))

Answer 5

You can try this,

var directoryInfo = new DirectoryInfo("C:\YourPath");
var filesInfo = directoryInfo.GetFiles().Where(x => x.Extension != ".pdb");

Answer 6

这是我在上面阅读的答案的版本

List<FileInfo> fileInfoList = ((DirectoryInfo)new DirectoryInfo(myPath)).GetFiles(fileNameOnly + "*").Where(x => !x.Name.EndsWith(".pdf")).ToList<FileInfo>();

Answer 7

I came across this looking for a method to do this where the exclusion could use the search pattern rules and not just EndWith type logic.

eg Search pattern wildcard specifier matches:

• * (asterisk) Zero or more characters in that position.
• ? (question mark) Zero or one character in that position.

This could be used for the above as follows.

string dir = @"C:\Temp";
var items = Directory.GetFiles(dir, "*.*").Except(Directory.GetFiles(dir, "*.xml"));

Or to exclude items that would otherwise be included.

string dir = @"C:\Temp";
var items = Directory.GetFiles(dir, "*.txt").Except(Directory.GetFiles(dir, "*HOLD*.txt"));

Answer 8

Afaik there is no way to specify the exclude patterns. You have to do it manually, like:

string[] files = Directory.GetFiles(myDir);
foreach(string fileName in files)
{
    DoSomething(fileName);
}

Answer 9

i used that

Directory.GetFiles(PATH, "*.dll"))

and the PATH is:

public static string _PATH = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);

Answer 10

string[] filesToDelete = Directory.GetFiles(@"C:\Temp", "*.der");

foreach (string fileName in filesToDelete)
{
    File.Delete(fileName);
}