# columnVisibilityChanged

Emitted when column visibility changes.

Canonical: https://grid.syidax.com/docs/events/columnVisibilityChanged/

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## What does this API do?

Emitted when column visibility changes.

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## Exact input and result types

```typescript
columnVisibilityChanged: GridColumnVisibilityChangedDetail
```

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## Usage flow

Subscribe with grid.addEventListener('columnVisibilityChanged', handler). The result is in event.detail, and event names are case-sensitive. Remove subscriptions when disposing of the view.

```javascript
const controller = new AbortController();
grid.addEventListener('columnVisibilityChanged', event => {
  console.log(event.detail);
}, { signal: controller.signal });
// On view disposal: controller.abort();
```

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## Read related types

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

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## Feature explanations and examples

- [Column sizing and pinning](https://grid.syidax.com/docs/features/column-operations.md) — Width, order, pinning, and visibility are independent column states. Combine them to pin order IDs, hide supporting information, and widen long product names.