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# WKAlertControllerStyle

Constants indicating the styles for standard system alerts.

```
enum WKAlertControllerStyle
```

## Topics

### Constants

[`WKAlertControllerStyle.alert`](/documentation/WatchKit/WKAlertControllerStyle/alert)

An alert sheet with stacked buttons. The alert sheet includes a default Cancel button at the bottom of the sheet. You can add other buttons, which are placed above the Cancel button.

[`WKAlertControllerStyle.sideBySideButtonsAlert`](/documentation/WatchKit/WKAlertControllerStyle/sideBySideButtonsAlert)

An alert sheet with side-by-side buttons.

[`WKAlertControllerStyle.actionSheet`](/documentation/WatchKit/WKAlertControllerStyle/actionSheet)

An action sheet style. Action sheets are modal sheets that can be dismissed using the Cancel button in the top-left corner of the sheet. You can also add one or two custom buttons to perform related tasks.


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