---
id: fast-foundation.listboxoption.dirtyvalue
title: ListboxOption.dirtyValue property
hide_title: true
---
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[@microsoft/fast-foundation](./fast-foundation.md) &gt; [ListboxOption](./fast-foundation.listboxoption.md) &gt; [dirtyValue](./fast-foundation.listboxoption.dirtyvalue.md)

## ListboxOption.dirtyValue property

Track whether the value has been changed from the initial value

<b>Signature:</b>

```typescript
dirtyValue: boolean;
```