# StartUndoAction Method

> Starts an undo action so that all property and method calls up to the next EndUndoAction call are undone by the end user as one single step.

- **Product:** TX Text Control ActiveX
- **Section:** Documentation
- **Kind:** Method
- **Path:** TX Text Control ActiveX > API Reference > TXTextControl > StartUndoAction Method
- **129 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-activex/reference/txtextcontrol/startundoaction-method/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-activex/reference/txtextcontrol/startundoaction-method/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-activex/reference/txtextcontrol/startundoaction-method/llms-full.txt

---

Defines the beginning of an undo action. It can be used, if more than one property or method call is to be defined as a single undo action. All property and/or method calls between StartUndoAction and [EndUndoAction](https://docs.textcontrol.com/tx-text-control-activex/reference/txtextcontrol/endundoaction-method/llms-full.txt) define a single undo action.

Introduced: 11.0.

### Syntax

```vbscript
TXTextControl.StartUndoAction
```

### See Also

- [EndUndoAction Method](https://docs.textcontrol.com/tx-text-control-activex/reference/txtextcontrol/endundoaction-method/llms-full.txt)
- [Programming Category: Undo](https://docs.textcontrol.com/tx-text-control-activex/reference/categories/undo/llms-full.txt)

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## Nearby

- **Previous:** [SpellCheckText Event](https://docs.textcontrol.com/tx-text-control-activex/reference/txtextcontrol/spellchecktext-event/llms-full.txt)
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