---
id: fast-foundation.combobox.open
title: Combobox.open property
hide_title: true
---
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[@microsoft/fast-foundation](./fast-foundation.md) &gt; [Combobox](./fast-foundation.combobox.md) &gt; [open](./fast-foundation.combobox.open.md)

## Combobox.open property

The open attribute.

<b>Signature:</b>

```typescript
open: boolean;
```

## Remarks

HTML Attribute: open
