Private Sub cmdUpdateThroughCursor_Click( _
        ByVal eventSender As System.Object, _
        ByVal eventArgs As System.EventArgs) _
        Handles cmdUpdateThroughCursor.Click

    ' Declare variables
    Dim i As Integer
    Dim myConn As New ADODB.Connection
    Dim myRS As New ADODB.Recordset
    Dim SQLString As String

    On Error GoTo HandleError

    ' Connect
    myConn.Provider = "SAOLEDB"
    myConn.ConnectionString = _
        "Data Source=SQL Anywhere 12 Demo"
    myConn.Open()
    myConn.BeginTrans()
    SQLString = "SELECT * FROM Customers"
    myRS.Open(SQLString, myConn, _
        ADODB.CursorTypeEnum.adOpenDynamic, _
        ADODB.LockTypeEnum.adLockBatchOptimistic)

    If myRS.BOF And myRS.EOF Then
        MsgBox("Recordset is empty!", 16, "Empty Recordset")
    Else
        MsgBox("Cursor type: " & CStr(myRS.CursorType), _
            MsgBoxStyle.Information)
        myRS.MoveFirst()
        For i = 1 To 3
            MsgBox("Row: " & CStr(myRS.Fields("ID").Value), _
                MsgBoxStyle.Information)
            If i = 2 Then
                myRS.Update("City", "Toronto")
                myRS.UpdateBatch()
            End If
            myRS.MoveNext()
        Next i
        myRS.Close()
    End If
    myConn.CommitTrans()
    myConn.Close()
    Exit Sub

HandleError:
    MsgBox(ErrorToString(Err.Number))
    Exit Sub

End Sub