Locking geographies to a district

Locking prevents a selected geography from being assigned to a district other than the district it is locked to.

Steps:

1. On the Create ribbon, select the desired selection level from the drop-down menu (Optional).

   If the selection level is set to Automatic, the selection changes with the map scale. For example, the district map may be zoomed in so that block groups are visible. At this extent, block groups are the selection level, and as such, block groups are the geography that can be assigned to a district.

   To enforce selection to a specific geography (for example, county, tract, block group, or block), choose the desired geography from the drop-down menu.

2. Click the desired locking option:
   • Lock Geography prevents the selected geography from being assigned to a district other than the district it is already assigned to.
   • Unlock Geography enabled the geography to be assigned to districts.
3. Click the geography on the map that you want to lock or unlock.

   Based on the Lock Geography or Unlock Geography tool used, the selected geography is locked or unlocked. On the map, you can see that a locked geography is symbolized with a crosshatched pattern.