# Open the Spell Check Dialog

> Open the spell check dialog for a Windows Forms RichTextBox with Check and SpellCheckDialog.Show, and apply corrections in the IncorrectWordChanging event.

- **Product:** TX Spell .NET for Windows Forms
- **Section:** Documentation
- **Kind:** Topic
- **Path:** TX Spell .NET for Windows Forms > Getting Started > RichTextBox and TextBox > Open the Spell Check Dialog
- **Web URL:** https://docs.textcontrol.com/tx-spell-dotnet-winforms/getting-started/richtextbox/dialog/
- **LLMs URL:** https://docs.textcontrol.com/tx-spell-dotnet-winforms/getting-started/richtextbox/dialog/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-spell-dotnet-winforms/getting-started/richtextbox/dialog/llms-full.txt

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## On This Page

- [Prerequisites](https://docs.textcontrol.com/tx-spell-dotnet-winforms/getting-started/richtextbox/dialog/#prerequisites)
- [How the Dialog Works With a RichTextBox](https://docs.textcontrol.com/tx-spell-dotnet-winforms/getting-started/richtextbox/dialog/#how-the-dialog-works-with-a-richtextbox)
- [Add the Button](https://docs.textcontrol.com/tx-spell-dotnet-winforms/getting-started/richtextbox/dialog/#add-the-button)
- [Write the Code](https://docs.textcontrol.com/tx-spell-dotnet-winforms/getting-started/richtextbox/dialog/#write-the-code)
- [Run the Application](https://docs.textcontrol.com/tx-spell-dotnet-winforms/getting-started/richtextbox/dialog/#run-the-application)
- [Offer Suggestions in the Context Menu](https://docs.textcontrol.com/tx-spell-dotnet-winforms/getting-started/richtextbox/dialog/#offer-suggestions-in-the-context-menu)
- [Next Steps](https://docs.textcontrol.com/tx-spell-dotnet-winforms/getting-started/richtextbox/dialog/#next-steps)

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## Nearby

- **Previous:** [Check Spelling as You Type](https://docs.textcontrol.com/tx-spell-dotnet-winforms/getting-started/richtextbox/as-you-type/llms.txt)
- **Next:** [Checking Text in Code](https://docs.textcontrol.com/tx-spell-dotnet-winforms/getting-started/in-code/llms.txt)