Why does File.Exists("c:\filename.txt/") return true?

Question

For the file C:\filename.txt,

File.Exists(@"c:\filename.txt/"); 

returns true. But when we then try to open with that filename, it fails.

The filename is bad because of the trailing /. But how can we test to know if a file is valid as this tells me it is not only ok, but that the file exists.

Update: In a standard command line test app the results are as expected (false). But in my custom uri handler the File.Exists() returns true. It's really bizarre.

Answer 1

Usually, when querying a system folder, file visualization is the culprit in this kind of issue. IE the file exists at the virtual store location but not in the actual queried path. As a result, attempting to open it will fail. So, before you state that the file doesn't exist. . . you should make sure it really doesn't exist.