Ejemplo de las propiedades AbsolutePosition y CursorLocation (VB)

Se aplica a: Access 2013, Office 2013

En este ejemplo se muestra cómo la propiedad AbsolutePosition puede realizar un seguimiento del progreso de un bucle que enumera todos los registros de un objeto Recordset. Usa la propiedad CursorLocation para habilitar la propiedad AbsolutePosition estableciendo el cursor en un cursor de cliente.

 
'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