# GridChartSourceSnapshot

Fields, allowed values, and APIs that use GridChartSourceSnapshot.

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

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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 type GridChartSourceSnapshot =
  | {
    readonly kind: 'range';
    readonly rangeId: number;
    readonly firstRow: number;
    readonly lastRow: number;
    readonly firstCol: number;
    readonly lastCol: number;
  }
  | {
    readonly kind: 'params';
    readonly firstRow: number;
    readonly lastRow: number;
    readonly columnIds: readonly string[];
  };
```

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## Contracts containing this type

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