Umbraco Tree

What is it?

A tree in Umbraco is a hierarchical structure of nodes registered in the Backoffice extension registry. Trees display organized content hierarchies and can be rendered anywhere in the Backoffice using the <umb-tree /> element. They require a data source implementation to fetch root items, children, and ancestors.

Documentation

Always fetch the latest docs before implementing:

• Main docs: https://docs.umbraco.com/umbraco-cms/extend-your-project/backoffice-extensions/extending-overview/extension-types/tree
• Sections & Trees: https://docs.umbraco.com/umbraco-cms/extend-your-project/backoffice-extensions
• Foundation: https://docs.umbraco.com/umbraco-cms/extend-your-project/backoffice-extensions/foundation
• Extension Registry: https://docs.umbraco.com/umbraco-cms/extend-your-project/backoffice-extensions/extending-overview/extension-registry

CRITICAL: Tree + Workspace Integration

Trees and workspaces are tightly coupled. When using kind: 'default' tree items:

1. Tree items REQUIRE workspaces - Clicking a tree item navigates to a workspace for that entity type. Without a workspace registered for the entityType, clicking causes "forever loading"