Spell checking in Windows Presentation Foundation

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One of the features that impressed PDC attendees was the built-in spell checker in Windows Presentation Foundation. Activating it is just as simple as setting the IsSpellCheckEnabled property to true on a TextBox or RichTextBox control.

<DockPanel xmlns=" https://schemas.microsoft.com/winfx/avalon/2005 ">
<TextBox IsSpellCheckEnabled='True'>This text is wronw.</TextBox>
<RichTextBox IsSpellCheckEnabled='True'>
<FlowDocument><Paragraph>This text is also wronw.</Paragraph></FlowDocument>
</RichTextBox>
</DockPanel>

Users will get red 'squigglies' under the misspelled words, and the context menu will come up with suggestions. Was that easy or what?

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