Check if FTP Directory Exists

How to test if a directory exists on an FTP server.

A good way to check to see if a directory already exists is to try to "cd" to that remote directory by calling ChangeRemoteDir. If it succeeds, then the directory exists. If not, then it does not exist. An alternative method is to set the ListPattern = "*" and then iterate over the files/directories, looking for the directory.

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Dim ftp As New Chilkat.Ftp2()

Dim success As Boolean

'  Any string unlocks the component for the 1st 30-days.
success = ftp.UnlockComponent("Anything for 30-day trial")
If (success <> true) Then
    MsgBox(ftp.LastErrorText)
    Exit Sub
End If


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

'  Connect and login to the FTP server.
success = ftp.Connect()
If (success <> true) Then
    MsgBox(ftp.LastErrorText)
    Exit Sub
End If


'  Does the "temp" directory exist?
Dim dirExists As Boolean
dirExists = ftp.ChangeRemoteDir("/temp")
If (dirExists = true) Then
    MsgBox("Yes, the temp directory exists.")
    '   Yes, it exists. Restore the current remote dir:
    success = ftp.ChangeRemoteDir("..")
    If (success <> true) Then
        MsgBox(ftp.LastErrorText)
        Exit Sub
    End If

End If


'  Alternatively, you may set the ListPattern = "*" and
'   look for the directory:
ftp.ListPattern = "*"

Dim i As Long
Dim n As Long
n = ftp.NumFilesAndDirs
If (n < 0) Then
    '  Failed to get directory listing based on ListPattern
    MsgBox(ftp.LastErrorText)
    Exit Sub
End If

Dim foundDir As Boolean
foundDir = false
If (n > 0) Then
    For i = 0 To n - 1
        Dim isDir As Boolean
        isDir = ftp.GetIsDirectory(i)
        If (isDir = true) Then
            Dim fname As String
            fname = ftp.GetFilename(i)
            If (fname = "temp") Then
                MsgBox("Found temp directory!")
                foundDir = true
                Exit For
            End If

        End If

    Next
End If


If (foundDir <> true) Then
    MsgBox("temp directory not found!")
End If


ftp.Disconnect()