# DefaultToolbarItemDescriptor Class

> Identifies a built-in toolbar item for Toolbar.setItems() or a contextual toolbar's ContextualToolbar.setItems() method.

- **Product:** TX Text Control .NET Server
- **Section:** Reference
- **Kind:** Class
- **Path:** TX Text Control .NET Server > Reference > JavaScript API - Document Viewer > DefaultToolbarItemDescriptor Class
- **161 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript-document-viewer/defaulttoolbaritemdescriptor/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript-document-viewer/defaulttoolbaritemdescriptor/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript-document-viewer/defaulttoolbaritemdescriptor/llms-full.txt

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### Description

Identifies a built-in toolbar item for [Toolbar.setItems()](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript-document-viewer/toolbar/llms-full.txt) or a contextual toolbar's [ContextualToolbar](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript-document-viewer/contextualtoolbar/llms-full.txt).setItems() method.

### Syntax

```javascript
DefaultToolbarItemDescriptor
```

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## In This Section

- [Javascript: DefaultToolbarItemDescriptor.defaultItemType Property](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript-document-viewer/defaulttoolbaritemdescriptor/defaultitemtype-property/llms-full.txt): Built-in item identifier accepted by the viewer.

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## Nearby

- **Previous:** [Javascript: DefaultItemTypes Enumeration](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript-document-viewer/defaultitemtypes/enumeration/llms-full.txt)
- **Next:** [Javascript: DefaultToolbarItemDescriptor.defaultItemType Property](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript-document-viewer/defaulttoolbaritemdescriptor/defaultitemtype-property/llms-full.txt)