---
id: fast-foundation.select.multiplechanged
title: Select.multipleChanged() method
hide_title: true
---
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[@microsoft/fast-foundation](./fast-foundation.md) &gt; [Select](./fast-foundation.select.md) &gt; [multipleChanged](./fast-foundation.select.multiplechanged.md)

## Select.multipleChanged() method

Sets the multiple property on the proxy element.

<b>Signature:</b>

```typescript
multipleChanged(prev: boolean | undefined, next: boolean): void;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  prev | boolean \| undefined | the previous multiple value |
|  next | boolean | the current multiple value |

<b>Returns:</b>

void
