Get files in a directory

Question

4.33/5 (3 votes)

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how can i get all files of a given directory as fileinfo[]?
i want to exclude more than 1 given extensions like(*.txt,*.doc)

Posted 30-Apr-11 1:23am

RAJI @Codeproject

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4 solutions

Solution 1

I think bellow code will help you.

C#

DirectoryInfo dir = new DirectoryInfo("directoryAddress");
FileInfo[] files = dir.GetFiles();
foreach (FileInfo file in files)
{
  // Do your Coding here
}

Posted 30-Apr-11 1:30am

Abdul Rahman Hamidy

Updated 30-Apr-11 1:32am

v2

Comments

Ankit Rajput 30-Apr-11 7:39am

Downvoted. Answer is not sufficient for the question

Solution 3

I suspect you can't do this in one step using .NET stuff (but am willing to be proved wrong)!

Probably need to use Directory.GetFiles to get all files - iterate over that and eliminate files with extensions you don't want / get the FileInfo for those you do and add to a List<fileinfo> - then use that to generate a FileInfo[] array.

Posted 30-Apr-11 1:34am

NuttingCDEF

Comments

OriginalGriff 30-Apr-11 7:37am

Consider yourself proved wrong! :laugh:
Linq can do it with ease...

NuttingCDEF 30-Apr-11 7:49am

More than happy to learn new tricks!

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yesotaso · Accepted Answer · 2011-04-30T03:35:00

Try this for fancy looks :

C#

System.IO.FileInfo[] fi = new System.IO.DirectoryInfo(path).GetFiles().
       Where(f => !(f.FullName.EndsWith(".mp3") || f.Name.EndsWith(".txt"))).ToArray();

or if you want to get involved with regex

C#

System.IO.FileInfo[] fi = new System.IO.DirectoryInfo(path).GetFiles().
       Where(s => !System.Text.RegularExpressions.Regex.IsMatch(s.Name, @"\.(txt|mp3|png)$")).ToArray();

Credits to OriginalGriff

OriginalGriff · Accepted Answer · 2011-04-30T01:36:00

Solution 4

Easy way is to use Linq:

FileInfo[] files = new DirectoryInfo(path).GetFiles();
FileInfo[] excluded = (from f in files
                       where f.Extension != ".txt" && f.Extension != ".jpg"
                       select f).ToArray();
foreach (FileInfo file in excluded)
    {
    Console.WriteLine(file.Name);
    }

Posted 30-Apr-11 1:36am

OriginalGriff

Comments

Ankit Rajput 30-Apr-11 7:38am

Nice Answer. My 5

Kim Togo 30-Apr-11 7:42am

My 5. The power of LINQ.
I think, if you really what to speedup things. Then change ".GetFiles()" to ".EnumerateFiles()".
You can start enumerating the collection of FileInfo objects before the whole collection is returned. Where ".GetFiles()" you must wait for the whole array of FileInfo objects to be returned before you can access the array.

Get files in a directory

4 solutions

Solution 6

Solution 4

Solution 1

Solution 3

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