Dataset Filtering on Dropdowns

I am using Query to reference option in a dropdown. Same like -Casey_Roman , I want to have a second dropdown based on the first dropdowns selection:

Detail Table:
ID | Area | Process Name
1 | Area 1 | Process 1
2 | Area 1 | Process 2
3 | Area 1 | Process 3
4 | Area 2 | Process 4
5 | Area 2 | Process 5

First dropdown I choose "Area 1" and second dropdown will display options "Process 1, Process 2, Process 3". Is it possible for using same script like -Casey_Roman although using query?