tree.tree.columns[].header

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Declared header with no confirmed consumer.

This is a compact property lookup. Use the contextual guide below for the complete feature model, configuration sequence, interactions, examples, and limitations.

Context

tree panel

Accepted value

string

Required

No

Default

No documented default.

User scenarios

• Audit legacy tree headers.

Related parameters

• tree.tree.columns[].label

Contextual guide and evidence

• Contextual guide: Open the complete human guide
• Source: apps/panel/src/types/panel-tree.ts, symbol TreeTableColumn
• Example coverage: Missing — No supported behavior example.
• Demo coverage: Missing — No confirmed consumer.

The panel source named above remains authoritative for runtime behavior. This secondary reference page is generated from the reviewed parameter matrix and does not replace the contextual guide.