# conditionalFormatsChanged

Emitted when conditional formatting rules change. Save rules as user preferences.

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

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## What does this API do?

Emitted when conditional formatting rules change. Save rules as user preferences.

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## Exact input and result types

```typescript
conditionalFormatsChanged: { rules: ConditionalFormatRule[] }
```

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## Usage flow

Subscribe with grid.addEventListener('conditionalFormatsChanged', 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('conditionalFormatsChanged', event => {
  console.log(event.detail);
}, { signal: controller.signal });
// On view disposal: controller.abort();
```

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## Read related types

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

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## Feature explanations and examples

- [Conditional formatting](https://grid.syidax.com/docs/features/conditional-formats.md) — Conditional formatting changes visual properties such as background and text color based on a value's meaning. Use it to identify low stock or exceeded targets without changing source values or validation results.