How do you use cascading Dropdown?
A cascading drop-down list is a series of dependent DropDownList controls in which one DropDownList control depends on the parent or previous DropDownList controls. The items in the DropDownList control are populated based on an item that is selected by the user from another DropDownList control.
How do you use cascading Dropdown in PowerApps?
Cascading Dropdown in PowerApps means one dropdown control value depends on the previous selection in a hierarchy, i.e., when a user picks an option from one dropdown control, the values filter in another Dropdown control.