Renaming Directory with same name different case

Question

I am trying to rename a directory in c# to a name that is the same only with differing case.

For example: f:\test to f:\TEST

I have tried this code:

var directory = new DirectoryInfo("f:\\test");
directory.MoveTo("f:\\TEST");

and I get a IOException - Source and destination path must be different. I have also tried Directory.Move() with the same result.

How is this done? Do I have to create a separate temp directory, move the contained files from the original directory to the temp directory, and then delete the original, and rename the temp directory?

Answer 1

The answer is yes in this case - the file system itself doesn't see the two as different, so you'll need to delete and the add as the new name (or move/delete/move as you suggested)

Answer 2

Why not rename the directory temp and then rename again to TEST ?

Answer 3

Well, you don't need to create a separate directory and move everything. Just rename the folder to something different and then back to the name you want:

var dir = new DirectoryInfo(@"F:\test");
dir.MoveTo(@"F:\test2");
dir.MoveTo(@"F:\TEST");

Apparently (big question mark, though), you could use MoveFileEx with the MOVEFILE_REPLACE_EXISTING flag.