What would cause both headlight to go out at the same time? on 1994 Dodge Dakota

All of the other lights that are controlled by the light switch on the truck work. I checked the circuits with a probe and showed either a ground or positive signature. The fuses checked out and the bulbs show no broken filaments.

Asked by for the 1994 Dodge Dakota
No headlights at all low or hi beam? Did you think to turn the switch on?
If you are unable to understand what you read, please do not respond. The original request stated that all the other lights controlled by this switch worked. Now how do you turn on the other lights without turning on the switch? Please people, informed responses.