Umbraco Picker Data Source

What is it?

A Picker Data Source provides data for picker-based property editors. It allows you to create custom data sources that supply items for content pickers, defining how items are fetched, searched, and displayed in a tree or collection format. This is useful for creating pickers that select from custom entities, external APIs, or filtered subsets of existing content.

Documentation

Always fetch the latest docs before implementing:

• Foundation: https://docs.umbraco.com/umbraco-cms/customizing/foundation
• Extension Registry: https://docs.umbraco.com/umbraco-cms/customizing/extending-overview/extension-registry
• Property Editors: https://docs.umbraco.com/umbraco-cms/customizing/property-editors

Reference Example

The Umbraco source includes working examples:

Location: /Umbraco-CMS/src/Umbraco.Web.UI.Client/examples/picker-data-source/