# GridSelectionChangedDetail

Fields, allowed values, and APIs that use GridSelectionChangedDetail.

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

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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 GridSelectionChangedDetail {
  mode: RowSelectionMode;
  selectedRowIds: ReadonlyArray<string | number>;
  addedIds: ReadonlyArray<string | number>;
  removedIds: ReadonlyArray<string | number>;
  serverSide?: SyGridServerSelectionState;
}
```

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## APIs using this type

- [selectionChanged](https://grid.syidax.com/docs/events/selectionChanged.md) — Emitted when row selection changes. Use selected IDs to define bulk-operation targets.

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## Related types

- [RowSelectionMode](https://grid.syidax.com/docs/types/RowSelectionMode.md)
- [SyGridServerSelectionState](https://grid.syidax.com/docs/types/SyGridServerSelectionState.md)