Export (0) Print
Expand All
Expand Minimize

AbsolutePosition and CursorLocation Properties Example (VB)

This example demonstrates how the AbsolutePosition property can track the progress of a loop that enumerates all the records of a Recordset. It uses the CursorLocation property to enable the AbsolutePosition property by setting the cursor to a client cursor.

'BeginAbsolutePositionVB

    'To integrate this code
    'replace the data source and initial catalog values
    'in the connection string
    
Public Sub Main()
    On Error GoTo ErrorHandler

    'recordset and connection variables
    Dim rstEmployees As ADODB.Recordset
    Dim Cnxn As ADODB.Connection
    Dim strCnxn As String
    Dim strSQL As String
        'record variables
    Dim strMessage As String
    
    'Open connection
    Set Cnxn = New ADODB.Connection
    strCnxn = "Provider='sqloledb';Data Source='MySqlServer';" & _
        "Initial Catalog='Pubs';Integrated Security='SSPI';"
    Cnxn.Open strCnxn

    ' Open Employee recordset with
    ' Client-side cursor to enable AbsolutePosition property
    Set rstEmployees = New ADODB.Recordset
    strSQL = "employee"
    rstEmployees.Open strSQL, strCnxn, adUseClient, adLockReadOnly, adCmdTable
   
    ' Enumerate Recordset
    Do While Not rstEmployees.EOF
        ' Display current record information
        strMessage = "Employee: " & rstEmployees!lname & vbCr & _
            "(record " & rstEmployees.AbsolutePosition & _
            " of " & rstEmployees.RecordCount & ")"
        If MsgBox(strMessage, vbOKCancel) = vbCancel Then Exit Do
        rstEmployees.MoveNext
    Loop

    ' clean up
    rstEmployees.Close
    Cnxn.Close
    Set rstEmployees = Nothing
    Set Cnxn = Nothing
    Exit Sub
    
ErrorHandler:
   ' clean up
    If Not rstEmployees Is Nothing Then
        If rstEmployees.State = adStateOpen Then rstEmployees.Close
    End If
    Set rstEmployees = Nothing
    
    If Not Cnxn Is Nothing Then
        If Cnxn.State = adStateOpen Then Cnxn.Close
    End If
    Set Cnxn = Nothing
    
    If Err <> 0 Then
        MsgBox Err.Source & "-->" & Err.Description, , "Error"
    End If
End Sub
'EndAbsolutePositionVB
Show:
© 2014 Microsoft