no config.rowKey; falling back to index identity. Row changes, streaming dedupe, selection persistence and remote reload are disabled.

Warnings reference › source.rowKey.missing

Identifier

source.rowKey.missing

Raised by

The grid (core)

Since

1.0.1

What happened

The source needs a stable identity per row to deduplicate a stream, to match an incoming change, and to keep a selection across a reload. Without rowKey a row is identified by its position, which changes whenever the rows do, so each of those features is switched off.

The fix

Set rowKey to the field that identifies a row.

The smallest fix

createGrid(el, { rowKey: 'id', source: { mode: 'stream', … } });

Reference

Covered in full at the API reference.