Can't find installable ISAM error message when using ADODB method

Walt in Decatur

I'm trying to use this method to copy an range in Excel workbook that is closed to the one that's open. I'm using the following code, which gets the "Can't find installable ISAM" error when I get to the line "cnt.Open". My Windows files (various .dll) are up to date, so there is some other hitch in there.

Sub Get_Data_Closed_Workbooks()
Dim cnt As ADODB.Connection
Dim cmd As ADODB.Command
Dim stCon As String, stSQL As String
Dim vaNames As Variant
Dim i As Long

'Here we create an array of known files
vaNames = VBA.Array("sending.xlsm")

Set cnt = New ADODB.Connection
Set cmd = New ADODB.Command

For i = LBound(vaNames) To UBound(vaNames)
stCon = "Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=C:\WAB_Stuff\Work Stuff\Excel Stuff\" & vaNames(i) & ";" & _
"Extended Properties='Excel 12.0;HDR=No'"
'Here we insert records without the need to locate the next empty row
'Note! The corresponding fieldnames in each sheet must be in first cell
'and the value below it.
stSQL = "INSERT INTO [Sheet1$] IN 'C:\WAB_Stuff\Work Stuff\Excel Stuff\receiving.xlsm' 'Excel 12.0;'" & _
"SELECT * FROM [Sheet1$C1:C4]"
cnt.ConnectionString = stCon
cnt.Open
cmd.ActiveConnection = cnt
cmd.CommandText = stSQL
cmd.Execute
stCon = Empty
stSQL = Empty
cnt.Close
Next i

Set cmd = Nothing
Set cnt = Nothing

End Sub

Googling for a solution has so far not yielded any fixes. I'm a complete VB dilettante, since I'm an architect by training. Any help will be appreciated.

Aug 11 '09 #1

ADezii

@Walt in Decatur

1. Hello Walt, first, I took the liberty of formatting the code for better readability.
   
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   1. Sub Get_Data_Closed_Workbooks()
   2. Dim cnt As ADODB.Connection
   3. Dim cmd As ADODB.Command
   4. Dim stCon As String
   5. Dim stSQL As String
   6. Dim vaNames As Variant
   7. Dim i As Long
   8.  
   9. 'Here we create an array of known files
   10. vaNames = VBA.Array("sending.xlsm")
   11.  
   12. Set cnt = New ADODB.Connection
   13. Set cmd = New ADODB.Command
   14.  
   15. For i = LBound(vaNames) To UBound(vaNames)
   16.   stCon = "Provider=Microsoft.Jet.OLEDB.4.0;" & _
   17.           "Data Source=C:\WAB_Stuff\Work Stuff\Excel Stuff\" & vaNames(i) & ";" & _
   18.           "Extended Properties='Excel 12.0;HDR=No'"
   19.  
   20.   'Here we insert records without the need to locate the next empty row
   21.   'Note! The corresponding fieldnames in each sheet must be in first cell
   22.   'and the value below it.
   23.   stSQL = "INSERT INTO [Sheet1$] IN 'C:\WAB_Stuff\Work Stuff\Excel Stuff\receiving.xlsm' 'Excel 12.0;'" & _
   24.           "SELECT * FROM [Sheet1$C1:C4]"
   25.  
   26.   cnt.ConnectionString = stCon
   27.   cnt.Open      'Error here
   28.  
   29.   cmd.ActiveConnection = cnt
   30.   cmd.CommandText = stSQL
   31.     cmd.Execute
   32.  
   33.   stCon = Empty
   34.   stSQL = Empty
   35.     cnt.Close
   36. Next i
2. Judging from the Jet Version, I assume you are using Access 2003, is this correct?

Aug 11 '09 #2

ChipR

Here's a Microsof Help and Support page on this topic, with links at the top to other versions of Access which say the same thing (the registry has an invalid path to the indexed sequential access method driver):
You receive a "Could not find installable ISAM" error message or some file types are missing when you import files, export files, or link files in Access 2000

Aug 11 '09 #3

Walt in Decatur

Adezii:

Thanks for code clean-up. I am truly a dabbler... :-(

I've substituted your code, but changed from Jet.4.0 to ACE.12.0 because I have Access 2007. When I ran it, the error came at line 31, "Cannot Update. Database or object is read-only". I'm actually using this code to get certain cells in an Excel workbook updated via paste linking cells from a closed workbook. The workbook from which I would like to copy is closed and not marked read-only when I run the script (called by an event in a Combobox) in the "receiving" Excel file.

I've formatted the source cells as a table, because that seemed to be one of the issues with the ISAM error I was receiving earlier when trying to use the Jet.4.0 engine reference in the code.

Aug 11 '09 #4

ADezii

@Walt in Decatur
Have you thought about the possibility of 'Linking' the Excel Workbook to be updated, and using Automation code to do the actual updating or dynamically Linking/Unlinking each Excel Workbook in the Array?

Aug 11 '09 #5

Walt in Decatur

Actually I have found another script that works great (see below). It's called by a macro which specifies the workbook, sheet and range to be copied (This workbook is the "Data" workbook. This works marvelously, but I need one more thing to happen.

The script is triggered in a "Review" workbook. In it I use a combobox to change the value of a particular cell "A2" (to a different individual's name). In the "Data" workbook, a corresponding cell is linked to this cell, also "A2", in the "Review" workbook. When both workbooks are open, this link updates automatically and in turn updates a bunch of cells in the "Review" workbook, displaying correct data for the individual just selected. No fancy script is needed in this case.

I want to amend the sub shown below to update cell "A2" in the "Data" workbook before the data cells are copied the corresponding range in the "Review" workbook. Would this have to be done first through a separate script, or can it be incorporated into the script below?

Aug 12 '09 #6

ADezii

I've created a Custom Function for you named fUpdateCellAInDataWorkbook() which will Update Cell A2 in the Data.xls Workbook to any Value you specify. The Function accepts 2 Arguments: the Absolute Path to the Data Workbook, and the New Value to overwrite the existing one. If Cell A1 is Updated successfully the Function returns True and processing continues as Normal in the Calling Routine. If an Error occurs, the Function returns False, a Message Box indicating the Error appears, the Function exists, returns to the Calling Routine, then Exits the Calling Routine. It can be executed totally independently from your existing code. It can probably also be incorporated into the existing code, but its placement would be crucial. In any event, you can try both approaches. Let me know how you make out.

1. Function Definition:
   
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   1. Public Function fUpdateCellAInDataWorkbook(strPathToWorkbook As String, strUpdateTo As String) As Boolean
   2. On Error GoTo Err_fUpdateCellAInDataWorkbook
   3. 'MUST Set a Reference to the Microsoft Excel X.X Object Library
   4. Dim appExcel As Excel.Application
   5. Dim wbExcel As Excel.Workbook
   6.  
   7. Set appExcel = CreateObject("Excel.Application")
   8. Set wbExcel = appExcel.Workbooks.Open(strPathToWorkbook)
   9.  
   10. appExcel.Sheets("Sheet1").Select
   11. appExcel.Cells(1, 2) = strUpdateTo
   12.  
   13. appExcel.DisplayAlerts = False
   14. wbExcel.Save
   15.  
   16. Set wbExcel = Nothing
   17. appExcel.Quit
   18.  
   19. fUpdateCellAInDataWorkbook = True
   20.  
   21. Exit_fUpdateCellAInDataWorkbook:
   22.   Exit Function
   23.  
   24. Err_fUpdateCellAInDataWorkbook:
   25.   fUpdateCellAInDataWorkbook = False
   26.     MsgBox Err.Description, vbExclamation, "Error in fUpdateCellAInDataWorkbook()"
   27.     Resume Exit_fUpdateCellAInDataWorkbook
   28. End Function
2. Sample Call:
   
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   1. If fUpdateCellAInDataWorkbook("C:\Test\Data.xls", "Fred Flintstone") Then
   2.   'Cell A in the Data Workbook was successfully Updated, proceed normally
   3. Else    'get outta Dodge!
   4.   Exit Sub
   5. End If

Aug 12 '09 #7

Walt in Decatur

ADezii:

Thanks for the custom function. I have tested a version of it (see code below). It works fine. However, it is not any faster than the code which actually opens the source workbook (see the other code snippet below). In either case, it takes about 30-40 seconds for the code to execute. Any suggestions for speeding things up will be appreciated.

Custom Function Code:
Actually Open Workbook code:

Aug 25 '09 #8