Things I keep forgetting about FileInfo

This is going to sound like a real newbie post. But I keep forgetting this particular bit of information and I keep having to write little throw away applications to find out the answer. FileInfo has a number of properties and the MSDN description on them are almost next to useless.

Given the file C:\folder\file.ext

• FileInfo.Name returns “file.ext”
• FileInfo.FullName returns “C:\folderfile.ext”
• FileInfo.Extension returns “.ext” (note the dot suffix)
• FileInfo.DirectoryName returns “C:\folder”
  • An exception is if the file is in the root directory. The result would be something like “C:\” with the trailing slash will be returned.

So there we have it. The things that I keep forgetting about FileInfo that MSDN just does not explain (except the Extension property, it at least does explain that one)

NOTE: This was rescued from the Google Cache. The original was dated Monday, 28th March 2005.