config.groupDefaultExpanded threw: {error}; the group starts expanded.

Warnings reference › groupDefaultExpanded.threw

Identifier

groupDefaultExpanded.threw

Raised by

The grid (core)

Since

1.58.0

What happened

The predicate that decides whether a group starts open threw. The group starts expanded - the permissive default - and the grid carries on. Reported once however many groups hit it.

The fix

The error's message is quoted in the line. The predicate is called with a group info object for every group, including empty ones and the ones the grid generates.

Reference

Covered in full at the API reference.