User Tips: Using FileSystemObject Constants
This tip comes from Chris K.
Those of you who have used ADO with ASP may already be familiar with
including a file called adovbs.inc (or adovbs.asp if you are concerned
about others reading include files) within each .asp file that makes use of
ADO. (For those who are not familiar, adovbs.inc contains a whole host of VB
Constant declaration statements, making it easier to use the hundreds of
parameter options that are associated with ADO, and is available in
Microsoft's SDK. You can learn more about it at:
ADOVBS.inc... Use It!.)
Using the FileSystemObject with ASP can create the same problems - the
parameters for each of the methods are in reality numeric, and (if you're
anything like me) remembering the individual values when writing or reading
code in an ASP can quickly lead to errors! (To learn more about the FileSystemObject be sure
to read the FileSystemObject F.A.Q..)
There isn't (to my knowledge) a file available from Microsoft which sets up
the constants which would make programming with the FileSystemObject easier
and more consistent between programmer - probably because there are far less
parameters to worry about using the FileSystemObject than there are with
ADO. However, many programmers set their own global variables (or constants)
to the various values, or simply use the values themselves.
But what if you're not familiar with these values? Well, here are a couple
of options:
1. Check out the VBScript Language Reference from Microsoft
(http://msdn.microsoft.com/library/default.asp?url=/library/en-us/script56/html/vbscripttoc.asp) or the
JScript Language Reference
(http://msdn.microsoft.com/library/default.asp?url=/library/en-us/script56/html/js56jslrfjscriptlanguagereference.asp) - these
both contain a whole section on the FileSystemObject and its collections,
methods, properties, etc.
2. Create a new text file, copy the following into it and then save it as
fsovbs.inc (or fsovbs.asp). You can then 'include' it in each of your ASP
pages that make use of the FileSystemObject and easily reference parameters
through the constants you've already set up. (You could simply copy these
lines into the adovbs.inc file and be done with it, but some would say it
shouldn't really be called adovbs.inc then...!)
<%
'---------------------------
' FSO Constants for VBScript
'---------------------------
CONST fsoWindowsFolder = 0
CONST fsoSystemFolder = 1
CONST fsoTemporaryFolder = 2
CONST fsoForReading = 1
CONST fsoForWriting = 2
CONST fsoForAppending = 8
CONST fsoTristateUseDefault = -2
CONST fsoTristateTrue = -1
CONST fsoTristateFalse = 0
%>
|
Happy FSO'ing!!
Happy Programming!
