# SyGridSelectionChangedEventDetail

Fields, allowed values, and APIs that use SyGridSelectionChangedEventDetail.

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

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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 SyGridSelectionChangedEventDetail {
  mode: 'single' | 'multi' | 'none';
  selectedRowIds: ReadonlyArray<GridRowId>;
  addedIds: ReadonlyArray<GridRowId>;
  removedIds: ReadonlyArray<GridRowId>;
}
```

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## Contracts containing this type

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

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## Related types

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