Question

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.NET How to check if path is a file and not a directory?

Can anyone think of a good way of telling whether a file system object path equates to a a file or a directory?

I did have the following method:

public static bool PathIsFile(this string fullPath)
{
    return (Path.GetExtension(fullPath).Length > 0);
}

But some files have no extension and some directories have a dot in their name so this is not cutting it.

Answer 1

There’s no way of knowing just from a string analysis that something is a file or a directory, since, as you noted,

C:\WINDOWS\WhoKnowsWhatThisIs

might be either a directory or a file.

You’ll have to call something like System.IO.Directory.Exists() or System.IO.File.GetAttributes() to test.