This app demonstrates the Select Data Records action.

Trigger: Record selection changes

This map contains three layers—states, counties, and census tracts. Each is visible at different zoom scales.

You can use the Select Data Records action to let users select something from one data set and mark features in another data set as selected.

Click a state at the default scale then zoom in to that state until counties or census tracts appear. All counties and census tracts in that state are also selected.