Question

I have a path and I need to determine if it is a directory or file.

Is this the best way to determine if the path is a file?

string file = @'C:\Test\foo.txt';  bool isFile = !System.IO.Directory.Exists(file) &&                           System.IO.File.Exists(file); 

For a directory I would reverse the logic.

string directory = @'C:\Test';  bool isDirectory = System.IO.Directory.Exists(directory) &&                              !System.IO.File.Exists(directory); 

If both don’t exists that then I won’t go do either branch. So assume they both do exists.

Answer 1

Use:

System.IO.File.GetAttributes(string path) 

and check whether the returned FileAttributes result contains the value FileAttributes.Directory:

bool isDir = (File.GetAttributes(path) & FileAttributes.Directory)                  == FileAttributes.Directory;