How to set a List B which is Cascade List type from a List A ?
List A: can choose
List B: base on List A when choose WIFI, and show
List B: base on List A when choose BT, and show
how can i implement this case ? List B base on what List A choose.
I see two options here.
Either you transition ListA to a nested lost which involves exporting all current data, changing the list, then importing the historical data back. In this case the list would look like;
Or your second option is to make the WiFi list veiwable/editable in the event WiFi is chosen on ListA using Field Level Read privileges and then another list for BT using the same logic.
This second option requires more mouse clicks but can be used to avoid any potentisl export/import issues.
As Patrick mentioned you can use a Cascade List or leverage field level discovery. One more is to have custom validation, preventing the record from being saved if the user selects an invalid combination. Personally, I think the cleanest method is to use a Cascade List.