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Identifying if a certain file already exsists

Posted on 2001-06-22
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Last Modified: 2010-05-02
I am already writing a file to a folder, but if a previous version of that same file exists it simply overwrites the old one.
How do you determine if a file already exists in a certain folder? For example: If I want to write a file called Test1.txt to a certain directory, how do I check if that file already exsits there before actully writing the new file to that directory? If the file does exist I would like to keep that file there and add this new one but add a (1) behind the file.

Thanks a lot
Michael
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Question by:mscala
7 Comments
 
LVL 18

Expert Comment

by:deighton
Comment Utility
'this sort of thing

if len(dir("c:\test\" & filename & "." & fileExt)) > 0  then
  filename = filename & [1]
end if
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LVL 49

Expert Comment

by:Ryan Chong
Comment Utility
If Dir$("c:\" & filename) <> "" then
    filename = filename & 1
End if
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LVL 1

Expert Comment

by:mcbeth
Comment Utility
Function FileExists(lzFileName As String) As Boolean
On Error GoTo ErrorHandler
FileExists = (GetAttr(lzFileName) And vbDirectory) = 0
ErrorHandler:
End Function

returns true if File exists

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Accepted Solution

by:
Ark earned 200 total points
Comment Utility
Hi
To check files on LAN too:

Private Declare Function PathFileExists Lib "shell32" Alias "#45" (ByVal sPath As String) As Boolean
Private Declare Function PathIsDirectory Lib "shell32" Alias "#159" (ByVal sPath As String) As Boolean

Cheers
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Expert Comment

by:costello
Comment Utility
Rejecting proposed answer.

If no objections are made in the next 4 days, I will force accept deighton's comment.

costello
Community Support Moderator @ Experts-Exchange
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Expert Comment

by:Moondancer
Comment Utility
ADMINISTRATION WILL BE CONTACTING YOU SHORTLY.  Moderators Computer101 or Netminder will return to finalize these if still open in seven days.  Please post closing recommendations before that time.

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Moondancer
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Expert Comment

by:Moondancer
Comment Utility
Zero response, finalized by Moondancer - EE Moderator
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