# GridCellEditorDeclaration

Fields, allowed values, and APIs that use GridCellEditorDeclaration.

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

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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 GridCellEditorDeclaration<
  TData = GridData,
  TValue = unknown,
  TContext = unknown,
> =
  | string
  | GridEditorDefinition<TData, TValue, TContext>
  | ({
      readonly type: 'rich-select';
    } & GridRichSelectEditorOptions<TValue>);
```

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## APIs using this type

- [cellEditor](https://grid.syidax.com/docs/columns/cellEditor.md) — Declares a custom cell editor. Use editor to select a built-in editor type.

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## Contracts containing this type

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

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## Related types

- [GridData](https://grid.syidax.com/docs/types/GridData.md)
- [GridEditorDefinition](https://grid.syidax.com/docs/types/GridEditorDefinition.md)
- [GridRichSelectEditorOptions](https://grid.syidax.com/docs/types/GridRichSelectEditorOptions.md)