Status 屬性範例 (Recordset) (VB)

此範例會使用 Status 屬性來顯示在批次更新發生之前，批次作業中已修改的記錄。

'BeginStatusRecordsetVB  
Public Sub Main()  
    On Error GoTo ErrorHandler  
  
    'To integrate this code  
    'replace the data source and initial catalog values  
    'in the connection string  
  
    ' connection and recordset variables  
    Dim rstTitles As ADODB.Recordset  
    Dim Cnxn As ADODB.Connection  
    Dim strCnxn As String  
    Dim strSQLTitles 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 recordset for batch update  
    Set rstTitles = New ADODB.Recordset  
    strSQLTitles = "Titles"  
    rstTitles.Open strSQLTitles, Cnxn, adOpenKeyset, adLockBatchOptimistic, adCmdTable  
  
    ' change the type of psychology titles  
    Do Until rstTitles.EOF  
        If Trim(rstTitles!Type) = "psychology" Then rstTitles!Type = "self_help"  
        rstTitles.MoveNext  
    Loop  
  
    ' display Title ID and status  
    rstTitles.MoveFirst  
    Do Until rstTitles.EOF  
        If rstTitles.Status = adRecModified Then  
            Debug.Print rstTitles!title_id & " - Modified"  
        Else  
            Debug.Print rstTitles!title_id  
        End If  
    rstTitles.MoveNext  
    Loop  
  
    ' clean up  
    rstTitles.Close  
    Cnxn.Close  
    Set rstTitles = Nothing  
    Set Cnxn = Nothing  
    Exit Sub  
  
ErrorHandler:  
    ' clean up  
    If Not rstTitles Is Nothing Then  
        If rstTitles.State = adStateOpen Then  
            ' Cancel the update because this is a demonstration  
            rstTitles.CancelBatch  
            rstTitles.Close  
        End If  
    End If  
    Set rstTitles = 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  
'EndStatusRecordsetVB  

另請參閱

Status 屬性 (ADO Recordset)