# GridRowHoverChangedDetail

Fields, allowed values, and APIs that use GridRowHoverChangedDetail.

Canonical: https://grid.syidax.com/docs/types/GridRowHoverChangedDetail/

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## Type definition

A question mark (?) marks an optional field; readonly marks a value you should not change directly. A union (|) accepts one of the listed forms. Functions are callbacks that Grid invokes at the relevant point.

```typescript
export interface GridRowHoverChangedDetail {
  hoveredRowId: string | number | null;
  previousRowId: string | number | null;
}
```

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## APIs using this type

- [rowHoverChanged](https://grid.syidax.com/docs/events/rowHoverChanged.md) — Emitted when the stateful hovered row changes. Unlike CSS-only hover, the app can read this state.