# Spell Checking

> Fix spell checking in WPF: words left unmarked, IgnoreCase and IgnoreWord errors, calls that throw while the dialog is open, Create and the Document Editor.

- **Product:** TX Spell .NET for WPF
- **Section:** Documentation
- **Kind:** Topic
- **Path:** TX Spell .NET for WPF > Troubleshooting > Spell Checking
- **Web URL:** https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/spell-checking/
- **LLMs URL:** https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/spell-checking/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/spell-checking/llms-full.txt

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## On This Page

- [A Word Isn't Underlined While You Type It](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/spell-checking/#a-word-isn-t-underlined-while-you-type-it)
- [Some Misspelled Words Aren't Marked](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/spell-checking/#some-misspelled-words-aren-t-marked)
- [Setting IgnoreCase or IgnoreWord Throws an Exception](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/spell-checking/#setting-ignorecase-or-ignoreword-throws-an-exception)
- [A Call Throws While the Spell Check Dialog Is Open](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/spell-checking/#a-call-throws-while-the-spell-check-dialog-is-open)
- [OptionsDialog Throws an ArgumentException](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/spell-checking/#optionsdialog-throws-an-argumentexception)
- [The Spell Checker Isn't Initialized Without TX Text Control](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/spell-checking/#the-spell-checker-isn-t-initialized-without-tx-text-control)
- [The Document Editor Doesn't Mark Misspelled Words](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/spell-checking/#the-document-editor-doesn-t-mark-misspelled-words)
- [Related Pages](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/spell-checking/#related-pages)

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## Nearby

- **Previous:** [Deployment](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/deployment/llms.txt)
- **Next:** [Examples](https://docs.textcontrol.com/tx-spell-dotnet-wpf/examples/llms.txt)