那就加上嘛:
Dim Value() As String
Value = e.Node.FullPath.Split("\")
Select Case e.Node.Level
Case 0
If e.Node.Text = "显示所有行" Then
Tables("订单主表").Filter = "未付金额 > 0"
Else
Tables("订单主表").Filter = "[客户编号] = '" & Value(0) & "' And 未付金额 > 0"
End If
Case 1
Tables("订单主表").Filter = "[客户编号] = '" & Value(0) & "' And [工作号] = '" & Value(1) & "' And 未付金额 > 0"
End Select