厂家
e.Sender.ComboList = DataTables("列表项目表").GetComboListString("一级条件","条件列='" & e.Form.Controls("类别").Value & "'")
名称
e.Sender.ComboList = DataTables("列表项目表").GetComboListString("二级条件","条件列='" & e.Form.Controls("类别").Value & "' and 一级条件='" & e.Form.Controls("厂家").Value & "'")
型号
e.Sender.ComboList = DataTables("列表项目表").GetComboListString("三级条件","条件列='" & e.Form.Controls("类别").Value & "' and 一级条件='" & e.Form.Controls("厂家").Value & "' and 二级条件 = '" & e.Form.Controls("名称").Value & "'")