File Existence Check

Testing to see if a file exists on the FTP server. The GetSizeByName method is a convenient way to check if a file exists. It will return -1 if the file does not exist, otherwise it returns the size of the file in bytes.

Download Chilkat FTP2 ActiveX

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
set ftp = Server.CreateObject("Chilkat.Ftp2")

'  Any string unlocks the component for the 1st 30-days.
success = ftp.UnlockComponent("Anything for 30-day trial")
If (success <> 1) Then
    Response.Write ftp.LastErrorText & "<br>"

End If

ftp.Hostname = "ftp.***.com"
ftp.Username = "***"
ftp.Password = "***"

'  Connect and login to the FTP server.
success = ftp.Connect()
If (success <> 1) Then
    Response.Write ftp.LastErrorText & "<br>"

End If

'  Set the current remote directory to where the file is located:
success = ftp.ChangeRemoteDir("/something")
If (success <> 1) Then
    Response.Write ftp.LastErrorText & "<br>"

End If

'  Test to see if the file exists by getting the file size by name.
'  If a -1 is returned, the file does not exist.
fileSize = ftp.GetSizeByName("test123.txt")
If (fileSize < 0) Then
    Response.Write "file does not exist" & "<br>"
Else
    Response.Write "file exists and is " _
         & fileSize & " bytes in size" & "<br>"
End If

ftp.Disconnect 
%>
</body>
</html>

Need a specific example? Send a request to support@chilkatsoft.com