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# selectIdentifier(_:for:byExtendingSelection:)

Selects a value or a set of values in a multivalue property.

```
func selectIdentifier(_ identifier: String!, for person: ABPerson!, byExtendingSelection extend: Bool)
```

## Parameters

`identifier`

The identifier to be selected, or to be added to the current selection.

`person`

The person that the value to be selected is associated with.

`extend`

<doc://com.apple.documentation/documentation/Swift/true> to extend the current selection; otherwise, <doc://com.apple.documentation/documentation/Swift/false>.

## Discussion

---

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