TextBox and RichTextBox in WPF4 has the built in SpellChecker functionality. It’s currently available in following four languages
- #LID 1033 – English
- #LID 3082 – Spanish
- #LID 1031 – German
- #LID 1036 – French
Enable SpellChecker functionality on TextBox or RichTextBox is as easy as just setting SpellCheck.IsEnabled to True on the controls.
<TextBox SpellCheck.IsEnabled="True" />