# ChartFrame.AddUndoUnit Method

> Add the current state of the chart which is connected with this ChartFrame to the undo stack. Programmatic changes performed with the chart's properties and methods are not automatically added to a TextControl's undo stack. Calling this method is not necessary, when the chart frame's layout in the text is changed.

- **Product:** TX Text Control .NET Server
- **Section:** Reference
- **Kind:** Method
- **Introduced:** 18.0
- **Namespace:** `TXTextControl.DataVisualization`
- **Package:** `TXTextControl.TextControl.Core.SDK` (assembly `TXTextControl.Core.dll`, from the private NuGet feed or Text Control Offline Packages)
- **Package:** `TXTextControl.TextControl.ASP.SDK` (assembly `TXTextControl.dll`, from the private NuGet feed or Text Control Offline Packages)
- **.NET Framework:** reference `TXTextControl.dll` from the setup
- **Path:** TX Text Control .NET Server > Reference > TXTextControl.DataVisualization > ChartFrame.AddUndoUnit Method
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-datavisualization/chartframe/addundounit-method/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-datavisualization/chartframe/addundounit-method/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-datavisualization/chartframe/addundounit-method/llms-full.txt

---

## On This Page

- [Description](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-datavisualization/chartframe/addundounit-method/#description)
- [Syntax](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-datavisualization/chartframe/addundounit-method/#syntax)
- [Examples](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-datavisualization/chartframe/addundounit-method/#examples)

---

## Nearby

- **Previous:** [ChartFrame Class](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-datavisualization/chartframe/llms.txt)
- **Next:** [ChartFrame.Chart Property](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol-datavisualization/chartframe/chart-property/llms.txt)