# TextViewGenerator.CanUndo Property

> Gets a value indicating whether the user can undo the previous operation.

- **Product:** TX Text Control .NET Server
- **Section:** Reference
- **Kind:** Property
- **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 > TextViewGenerator.CanUndo Property
- **412 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-servervisualization/textviewgenerator/canundo-property/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-servervisualization/textviewgenerator/canundo-property/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-servervisualization/textviewgenerator/canundo-property/llms-full.txt

---

### Description

Gets a value indicating whether the user can undo the previous operation.

### Syntax

```csharp
public bool CanUndo { get; }
```

```vbnet
Public ReadOnly Property CanUndo As Boolean
```

### Examples

The following example applies bold formatting through the text view generator's selection by using `TextViewGenerator.CanUndo`.

```csharp
Selection formattedSelection = textViewGenerator.Selection;
formattedSelection.Bold = true;
textViewGenerator.Selection = formattedSelection;

if (textViewGenerator.CanUndo)
{
    textViewGenerator.Undo();
}
```

```vbnet
Dim formattedSelection As Selection = textViewGenerator.Selection
formattedSelection.Bold = True
textViewGenerator.Selection = formattedSelection

If textViewGenerator.CanUndo Then
    textViewGenerator.Undo()
End If
```

### Limitations

Runtime only.

Read only.

---

## Nearby

- **Previous:** [TextViewGenerator.CanTableFormat Property](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-servervisualization/textviewgenerator/cantableformat-property/llms-full.txt)
- **Next:** [TextViewGenerator.CaretStateChanged Event](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-servervisualization/textviewgenerator/caretstatechanged-event/llms-full.txt)