Re: fast file count method?

Tech-Archive recommends: Fix windows errors by optimizing your registry

"Luca Beretta" <LucaBeretta@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:C834CC43-5653-45F3-AC92-C08A7A46C672@xxxxxxxxxxxxxxxx
the managed way is :

System.IO.DirectoryInfo dinfo = new
System.IO.DirectoryInfo("c:\\windows");
int filecount = dinfo.GetFiles().Length;

otherwise you need to PInvoke C++ function from Win API.

.... which will be just as slow as the method the OP suggested.

In short, no - there's no faster way to get a full count of files than by
counting them. Exactly how you go about counting them is a matter of some
debate, but they'll all boil down to calls to FindFirstFile/FindNextFile at
the Win32 level and so will all take about the same amount of time.

You can use the class described in this article:

http://www.codeproject.com/cs/files/FileSystemEnumerator.asp

to count files as well - it will take the same amount of time as the methods
described above, but it won't take as much memory since it doesn't return a
string[] of file names.

-cd


.

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