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Trees in Nuclos (explorer tree)

Build hierarchical explorer trees – BO wizard, child nodes and publishing the workspace.

HOW-TO DEVELOPER UPDATED: JUL 2026 APPLIES TO NUCLOS 4.2026.X

On this page

The explorer tree visualizes hierarchical data and simplifies navigation. Nuclos distinguishes two kinds of trees:

trees created from a result list (search condition) – not yet supported in the web client and not delivered by the REST service;
trees starting from a record – the common case (described here).

Steps

Configure the levels in the BO wizard starting from the topmost entity.
In the context menu Add child node, choose the dependent entities – make sure „reference field to root node“ is empty.
Open the record and create the tree via Tools → Show in explorer; set the tab to Never close.
Publish the workspace – the tree is then available.

Performance

For performance optimization when expanding nodes, see precomputing leaves.

Performance.