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Connecting to FoxPro database with ADO

Posted on 2006-12-01
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Last Modified: 2013-12-25
Vernerable Guru's,
I'm a little rusty using VB6/ADO and FoxPro Tables
I seem to be doing something wrong connecting to a FoxPro Database Table that I need to process.  The routine I have below appears to connect but as soon as I wish to do anything significant such as moving to end of the table or getting a record count it flakes out.  Can someone enlighten me whats going on to correct it?

Thank you!

Ted

Code ------------------------------------------------------------

Private Function ConnectDBF() As Boolean
    On Error GoTo Err_Handler
    Dim oCn As New ADODB.Connection
    Dim oRn As New ADODB.Recordset
    Dim oCd As New ADODB.Command
    Dim bColor As Long
    Dim sConn As String
    Const CONNECTION_STRING = "DSN=POS_DBF;UID=;PWD="
   
    Screen.MousePointer = 11
    oCn.Open "Driver={Microsoft Visual FoxPro Driver};" & _
           "SourceType=DBF;" & _
           "SourceDB=d:\pos;" & _
           "Exclusive=No"
   
    Set oCd.ActiveConnection = oCn
    oCd.CommandText = "Select  * from MyData.dbf"
    oRn.CursorLocation = adUseClient
    oRn.Open oCd, , adOpenDynamic, adLockReadOnly
    cmdConnect.Font.Bold = True
    bColor = cmdConnect.BackColor
    cmdConnect.BackColor = vbRed
    Screen.MousePointer = 0
    MsgBox "Connected to DBF." , vbInformation
    Msgbox oRn.RecordCount    '<<<<<<<<<<< "E_FAIL" ERROR MESSAGE OCCURS HERE!
   

QUit_Handler:
    Set oRn = Nothing
    Set oCd = Nothing
    Set oCn = Nothing
    cmdConnect.BackColor = bColor
    cmdConnect.Font.Bold = False
    Screen.MousePointer = 0
    Exit Function
   
Err_Handler:
    cmdConnect.BackColor = bColor
    Screen.MousePointer = 0
    cmdConnect.Font.Bold = False
    MsgBox Err.Description, vbInformation
    Resume QUit_Handler
    Resume
End Function

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Question by:tcalbaz
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5 Comments
 
LVL 29

Accepted Solution

by:
leonstryker earned 500 total points
ID: 18069265
Try this:

Private Function ConnectDBF() As Boolean
    Dim oCn As New ADODB.Connection
    Dim oRn As New ADODB.Recordset
    Dim strSQL As String

    oCn.Open "Driver={Microsoft Visual FoxPro Driver};" & _
           "SourceType=DBF;" & _
           "SourceDB=d:\pos;" & _
           "Exclusive=No"

    oRn.CursorLocation = adUseClient

    strSQL = "Select  * from MyData.dbf"
    oRn.Open strSQL, oCn, adReadOnly, adLockOptimistic

    Msgbox oRn.RecordCount

    oRn.Close
    Set oRn = Nothing
    oCn.Close
    Set oCn = Nothing
End Function
0
 
LVL 1

Author Comment

by:tcalbaz
ID: 18069381
leonstryker,

It appears that I got a similar result.  
When the code got to recordcount I got this Error:

"Data provider or other service returned an E_FAIL status"

I'm not sure why this is happening.  I'll try to find out a little more with google.

Thank you

Ted
0
 
LVL 29

Expert Comment

by:leonstryker
ID: 18069415
I think the problem is with your connection string.  Take a look here:  

http://www.carlprothman.net/Default.aspx?tabid=87#OLEDBProviderForVisualFoxPro

Leon
0
 
LVL 1

Author Comment

by:tcalbaz
ID: 18070270
Leonstryker
I think your code is correct. I do think I have an issue with my drivers.
I'll work with this.

Thank you

Ted
0

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