The grid (core) ยท console.warn
groupColumns was given no known column ids; ...
Printed by The grid (core), prefixed [lattice], since 1.29.0.
Warnings reference › columns.group.empty
- Identifier
columns.group.empty- Raised by
- The grid (core)
- Since
- 1.29.0
What happened
Every id handed to groupColumns() is unknown to the grid, so there is nothing to put in a band and no band was created. null is returned.
The fix
Pass ids from grid.columns.all(). Ids are matched exactly.
Reference
Covered in full at the API reference.