Building Address Forms for Cambodia in React — CambodiaPostalCode Dev Blog

Building a Cascading Address Selector

A cascading dropdown is the classic pattern for address forms: select a province first, then districts update, then communes update based on the district.

Step 1: Get All Provinces

Start by fetching the full list of provinces. Cache this client-side since it rarely changes.

Step 2: Listen for Province Change

When a user selects a province, fetch districts for that province and reset commune selection while loading.

Building a Cascading Address Selector

A cascading dropdown is the classic pattern for address forms: select a province first, then districts update, then communes update based on the district.

Step 1: Get All Provinces

Start by fetching the full list of provinces. Cache this client-side since it rarely changes.

Step 2: Listen for Province Change

When a user selects a province, fetch districts for that province and reset commune selection while loading.

Building a Cascading Address Selector

A cascading dropdown is the classic pattern for address forms: select a province first, then districts update, then communes update based on the district.

Step 1: Get All Provinces

Start by fetching the full list of provinces. Cache this client-side since it rarely changes.

Step 2: Listen for Province Change

When a user selects a province, fetch districts for that province and reset commune selection while loading.

Building a Cascading Address Selector

A cascading dropdown is the classic pattern for address forms: select a province first, then districts update, then communes update based on the district.

Step 1: Get All Provinces

Start by fetching the full list of provinces. Cache this client-side since it rarely changes.

Step 2: Listen for Province Change

When a user selects a province, fetch districts for that province and reset commune selection while loading.