# View.OnChanged Method

> Raises the view's Changed event.

- **Product:** TX Text Control .NET Server
- **Section:** Reference
- **Kind:** Method
- **Introduced:** 21.0
- **Namespace:** `TXTextControl.ServerVisualisation`
- **Package:** `TXTextControl.TextControl.Core.SDK` (assembly `TXTextControl.Server.Core.dll`, from the private NuGet feed or Text Control Offline Packages)
- **Package:** `TXTextControl.TextControl.ASP.SDK` (assembly `TXTextControl.Server.dll`, from the private NuGet feed or Text Control Offline Packages)
- **.NET Framework:** reference `TXTextControl.Server.dll` from the setup
- **Path:** TX Text Control .NET Server > Reference > TXTextControl.ServerVisualization > View.OnChanged Method
- **384 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-servervisualization/view/onchanged-method/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-servervisualization/view/onchanged-method/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-servervisualization/view/onchanged-method/llms-full.txt

---

### Description

Raises the view's [Changed](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-servervisualization/view/changed-event/llms-full.txt) event.

### Syntax

```csharp
protected virtual void OnChanged(ViewChangedEventArgs e);
```

```vbnet
Protected Overridable Sub OnChanged(e As ViewChangedEventArgs)
```

### Parameters

| Parameter | Description |
|---|---|
| e | Specifies an [ViewChangedEventArgs](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-servervisualization/viewchangedeventargs/llms-full.txt) object that contains the event data. |

### Examples

The following example handles Changed without deriving from View, whose instances are supplied by the document controller.

```csharp
view.Changed += (sender, e) =>
{
    Console.WriteLine("Changed occurred.");
};
```

```vbnet
AddHandler view.Changed, Sub(sender, e)
    Console.WriteLine("Changed occurred.")
End Sub
```

---

## Nearby

- **Previous:** [View.OnAutoVScroll Method](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-servervisualization/view/onautovscroll-method/llms-full.txt)
- **Next:** [View.OnZoomed Method](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-servervisualization/view/onzoomed-method/llms-full.txt)