Determine number of files in a directory.

Question

I need to determine the number of files/subdirectories in a directory. I don't care which files/directories are actually in that directory. Is there a more efficient way than using

_directoryInfo.GetDirectories().Length +
_directoryInfo.GetFiles().Length

Thanks.

Answer 1

That's probably about as good as it gets, but you should use GetFileSystemInfos() instead which will give you both files and directories:

_directoryInfo.GetFileSystemInfos().Length

Answer 2

string[] filePaths = Directory.GetFiles(@"c:\MyDir\");

then just take the size of the filePaths array

code from: C#-Examples

Answer 3

You could use the GetFileSystemEntries method found in the Directory class and then query the Length of the array of items returned.

Answer 4

DirectoryInfo d = new DirectoryInfo(@"C:\MyDirectory\");
FileInfo[] files = d.GetFiles("*.*");

int NumberOfFilesInDir;

foreach( FileInfo file in files )
{
   NumberOfFilesInDir++;
}