Tracing a temporary file "If it Exists".

Re: Tracing a temporary file "If it Exists".

Go to my site and search for FileExists.

--

Randy Birch
MVP Visual Basic

Please respond only to the newsgroups so all can benefit.


"Jason Charalambides" <dartgameplayer @netscape.com> wrote in message
news:efkqb.1265 4$Mc.4342@twist er.austin.rr.co m...
: I set a program to automatically load values from a temporary file.
: However, there is a chance that the specific temporary file
"C:\Temp\TU.tmp "
: may not exist at all. In that case I want that specific routine to be
: skipped. I guess this is a simple
:
: If (that file exists)
: Open "C:\Temp\TU.tmp " For Input As #3
: etc.......
: Else
: GoTo
: SkipOpeningProc ess
: End If
:
: and I just define point as "SkipOpeningPro cess" and that is fine.
: My question is:
: What is the command that will trace whether the actual temporary file
: exists? If the file does not exist it is perfectly fine to skip this
: process as it will be very easy for the traced data to be manually given
by
: the user.
: I assume that's easy but not available in any VB6 book index, ...nor very
: easy to find going through pages!
: Thank you
: J.C.
:
:

Re: Tracing a temporary file &quot;If it Exists&quot;.

If Dir("C:\Temp\TU .tmp")<>"" then
'Stuff to do
End If


Mauro


"Jason Charalambides" <dartgameplayer @netscape.com> wrote in message
news:efkqb.1265 4$Mc.4342@twist er.austin.rr.co m...[color=blue]
> I set a program to automatically load values from a temporary file.
> However, there is a chance that the specific temporary file[/color]
"C:\Temp\TU.tmp "[color=blue]
> may not exist at all. In that case I want that specific routine to be
> skipped. I guess this is a simple
>
> If (that file exists)
> Open "C:\Temp\TU.tmp " For Input As #3
> etc.......
> Else
> GoTo
> SkipOpeningProc ess
> End If
>
> and I just define point as "SkipOpeningPro cess" and that is fine.
> My question is:
> What is the command that will trace whether the actual temporary file
> exists? If the file does not exist it is perfectly fine to skip this
> process as it will be very easy for the traced data to be manually given[/color]
by[color=blue]
> the user.
> I assume that's easy but not available in any VB6 book index, ...nor very
> easy to find going through pages!
> Thank you
> J.C.
>
>[/color]

Re: Tracing a temporary file &quot;If it Exists&quot;.

Mauro <mbiefeni@hotma il.com> schreef in berichtnieuws
XmAqb.324206$6C 4.65024@pd7tw1n o...
[color=blue]
> If Dir("C:\Temp\TU .tmp")<>"" then
> 'Stuff to do
> End If[/color]

But don't try to use this within another loop that uses the "dir" command
.... VB only allowes *one*of those "dir" commands to be active at a time.

Regards,
Rudy Wieser

Re: Tracing a temporary file &quot;If it Exists&quot;.

>> I set a program to automatically load values from a temporary file.[color=blue][color=green]
>> However, there is a chance that the specific temporary file[/color]
> "C:\Temp\TU.tmp "[color=green]
>> may not exist at all. In that case I want that specific routine to
>> be skipped. I guess this is a simple[/color][/color]
[color=blue]
> If Dir("C:\Temp\TU .tmp")<>"" then
> 'Stuff to do
> End If
> Mauro[/color]

It is not a simple VB6 command, that's why you haven't found it in the
books. You have to have a procedure like the above to do it. This will
work, though in the long run you should avoid "Dir()" and put the
decision in a FUNCTION where you get the attributes or otherwise access
the file and catch any resulting errors, then return true or false:

If FileExists("c:\ temp\tu.tmp") then
'do stuff for no file
End If

'where you create "FileExists ()" yourself.

Re: Tracing a temporary file &quot;If it Exists&quot;.


"Jason Charalambides" <dartgameplayer @netscape.com> wrote in message
news:efkqb.1265 4$Mc.4342@twist er.austin.rr.co m...[color=blue]
> I set a program to automatically load values from a temporary file.
> However, there is a chance that the specific temporary file[/color]
"C:\Temp\TU.tmp "[color=blue]
> may not exist at all. In that case I want that specific routine to be
> skipped. I guess this is a simple
>
> If (that file exists)
> Open "C:\Temp\TU.tmp " For Input As #3
> etc.......
> Else
> GoTo
> SkipOpeningProc ess
> End If
>
> and I just define point as "SkipOpeningPro cess" and that is fine.
> My question is:
> What is the command that will trace whether the actual temporary file
> exists? If the file does not exist it is perfectly fine to skip this
> process as it will be very easy for the traced data to be manually given[/color]
by[color=blue]
> the user.
> I assume that's easy but not available in any VB6 book index, ...nor very
> easy to find going through pages!
> Thank you
> J.C.
>
>[/color]

You could add Microsoft Scripting Runtime as a Reference to the project -
this makes available the family of FileSystemObjec t objects which can do
things like checking whether files and folders exist.

I know some of the chaps on here aren't keen on this, though, and I would be
interested to know why...

Regards

--Jim.