Getting used to IEnumerator's

[Dmyze]

I'm trying to write a search routine that will search the hard drive for a list of files to see if they exist, I keep getting this error:

An unhandled exception of type 'System.ArgumentException' occurred in search.exe

Additional information: The parameter is incorrect.

it crashes on this line:

oFolder = oFS.GetFolder(oFolders(FolderKey.Current).Path.ToString)


it also crashes on the msgbox line that is commented out, and I just don't see why.

Public Function File_Search_Test( ByVal rs As ADODB.Recordset) As String

Dim oFS As New Scripting.FileSystemObject()
Dim oFolder As Scripting.Folder
Dim oFolders As Scripting.Folders
Dim oDrives As Scripting.Drives
Dim oDrive As Scripting.Drive
Dim iCount As Short
Dim iFolder As Short
Dim oKey As IEnumerator
Dim FolderKey As IEnumerator

oDrives = oFS.Drives

oKey = oDrives.GetEnumerator

Do Until oKey.MoveNext = False

If oDrives(oKey.Current).DriveType.ToString = "Fixed" Then
oFolders = oDrives(oKey.Current).RootFolder.SubFolders
FolderKey = oFolders.GetEnumerator
FolderKey.MoveNext()
'MsgBox(oFolders.Item(FolderKey.Current).Name.ToString)
oFolder = oFS.GetFolder(oFolders(FolderKey.Current).Path.ToString)
MsgBox(oFolder.Name)

End If

[wolfofthenorth]

I think FolderKey.Current returns an Object. You may have to do something like this.

Ctype(FolderKey.Current, Folder)

[wolfofthenorth]

This will work better than my last suggestion. Is it what you were after?

Public Function File_Search_Test() As String

Dim oFS As New Scripting.FileSystemObject()
Dim oFolder As Scripting.Folder
Dim oFolders As Scripting.Folders
Dim oDrives As Scripting.Drives
Dim oDrive As Scripting.Drive
Dim iCount As Short
Dim iFolder As Short
Dim oKey As IEnumerator
Dim FolderKey As IEnumerator
Dim CurrentFolder As Scripting.Folder

oDrives = oFS.Drives

oKey = oDrives.GetEnumerator

Do Until oKey.MoveNext = False

If oDrives(oKey.Current).DriveType.ToString = "Fixed" Then
oFolders = oDrives(oKey.Current).RootFolder.SubFolders
FolderKey = oFolders.GetEnumerator
FolderKey.MoveNext()

''''''''''''''''''''''''''''''''''''''''''''''''
CurrentFolder = CType(FolderKey.Current, Scripting.Folder)
MsgBox(CurrentFolder.Name)
'''''''''''''''''''''''''''''''''''''''''''''''''
End If
Loop
End Function

[Dmyze]

Yea I talked to one of my C# friends over the weekend, and the answer we came up with that worked was:

FolderKey = oFolders.GetEnumerator
FolderKey.MoveNext
FolderKey.Current.Name.ToString

Instead of

FolderKey = oFolders.GetEnumerator
FolderKey.MoveNext
oFolders.Item(FolderKey.Current).Name.ToString


That seems weird to me, becase this line works:

oFolders = oDrives(oKey.Current).RootFolder.SubFolders

From what I've learned either this should work:

oFolders = oDrives(oKey.Current).RootFolder.SubFolders
oFolders.Item(FolderKey.Current).Name.ToString

Or I should have to do use:

FolderKey.Current.Name.ToString
oFolders = oKey.Current.RootFolder.SubFolders

it just doesn't seem right that oFolders = oDrives(oKey.Current).RootFolder.SubFolders works while the other doesn't could this be a bug in VB.NET ?

cType, I take it that is for casting? my C# friend kept asking me if I knew how to cast..

[Cander]

yeah CType is the closest equivalnt to C# casting..