请帮忙看看这个程序哪 里错了 啊?

Private Sub search_material(ByVal s As String)
Set rstemp = New adodb.Recordset
sqlconnection = "provider=microsoft.jet.oledb.4.0;data source=" & App.Path & "\jxc.mdb"
If Len(Trim(s)) > 0 Then
      rstemp.Open "select * from WS A drawing num apply where name='" & Trim(s) & "'", sqlconnection, adOpenKeyset
      If rstemp.RecordCount = 1 Then
         Text2.Text = rstemp.Fields("drawing number")
      End If
Else
   rstemp.Open "select * from WS A drawing num apply", cnn, adOpenDynamic
   If rstemp.RecordCount > 0 Then
      rstemp.MoveFirst
      Do While Not rstemp.EOF
         Combo1.AddItem rstemp.Fields("drawing number")
         rstemp.MoveNext
         If rstemp.EOF Then
         End If
      Loop
   End If
End If
rstemp.Close
Set rstemp = Nothing
End Sub
请帮忙看看这个程序哪 里错了 啊?