# HtmlHelperExtension Class

> Extends the standard System.Web.Mvc.HtmlHelper class with a DocumentViewer specific extension method.

- **Product:** TX Text Control .NET Server
- **Section:** Reference
- **Kind:** Class
- **Namespace:** `TXTextControl.Web.MVC.DocumentViewer`
- **Package:** `TXTextControl.Web.DocumentViewer` (assembly `TXTextControl.Web.MVC.DocumentViewer.dll`, from nuget.org, the private NuGet feed or Text Control Offline Packages)
- **Package:** `TXTextControl.Web.DocumentViewer.Classic` (assembly `TXTextControl.Web.MVC.DocumentViewer.dll`, from nuget.org)
- **Path:** TX Text Control .NET Server > Reference > TXTextControl.Web.MVC.DocumentViewer > HtmlHelperExtension Class
- **428 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-web-mvc-documentviewer/htmlhelperextension/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-web-mvc-documentviewer/htmlhelperextension/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-web-mvc-documentviewer/htmlhelperextension/llms-full.txt

---

### Description

Extends the standard System.Web.Mvc.HtmlHelper class with a DocumentViewer specific extension method.

### Syntax

```csharp
public static class HtmlHelperExtension
```

```vbnet
Public Module HtmlHelperExtension
```

### Examples

The following example identifies the Html Helper Extension helper used to configure the web document component.

```csharp
Type helperType = typeof(TXTextControl.Web.MVC.DocumentViewer.HtmlHelperExtension);
Console.WriteLine($"Web helper: {helperType.FullName}");
```

```vbnet
Dim helperType As Type = GetType(TXTextControl.Web.MVC.DocumentViewer.HtmlHelperExtension)
Console.WriteLine($"Web helper: {helperType.FullName}")
```

---

## In This Section

- [HtmlHelperExtension.TXTextControl Method](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-web-mvc-documentviewer/htmlhelperextension/txtextcontrol-method/llms-full.txt): Provides access to helper methods allowing you to render individual TX Text Control ASP.NET MVC extensions.For now only one extension is implemented(see class DocumentViewer).

---

## Nearby

- **Previous:** [WorkerPoolOptions.QueueCapacity Property](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-web-mvc-documentviewer-hosting/workerpooloptions/queuecapacity-property/llms-full.txt)
- **Next:** [HtmlHelperExtension.TXTextControl Method](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-web-mvc-documentviewer/htmlhelperextension/txtextcontrol-method/llms-full.txt)