WPF Spell Checker Overview

• Jan 11, 2022
• 2 minutes to read

Included Components

Spell Checker is represented by three instances:

• SpellChecker - basic spell checking component;
• RichEditSpellChecker - spell-checking functionality in XAML for the RichEditControl;
• DXSpellChecker - spell-checking functionality in XAML for other text editors.

Main Features

The table below lists features available for Spell Checker components.

Parameters	SpellChecker	RichEditSpellChecker	DXSpellChecker
Supported Editors	TextBox RichTextBox TextEdit MemoEdit RichEditControl	RichEditControl	TextBox RichTextBox TextEdit MemoEdit
Supported Dictionaries	Simple, ISpell, OpenOffice, Hunspell, Custom	ISpell, OpenOffice, Hunspell, Custom	ISpell, OpenOffice, Hunspell, Custom
Available in Code-Behind	Yes (Example)	No	No
Check-As-You-Type Mode	Yes (Example)	Yes (Example)	Yes (Example)
Custom Controls Registration	Yes (Example)	No	No

Product Class Structure

Use the following links to access reference information about the most important classes in the Spell Checker.

Class	Description
SpellChecker	Represents the base component of the Spell Checker.
RichEditSpellChecker	Allows you to implement the spell checking functionality for the RichEditControl in XAML.
DXSpellChecker	Allows you to implement the spell checking functionality for the text controls in XAML.
SpellCheckerDictionary	Represents a dictionary used by the XtraSpellChecker engine.
SpellCheckerISpellDictionary	Represents an XtraSpellChecker dictionary originated from a dictionary in the ISpell format.
SpellCheckerISpellDictionaryExtension	An extension instance implementing the SpellCheckerISpellDictionary functionality in XAML.
SpellCheckerOpenOfficeDictionary	Represents an XtraSpellChecker dictionary originated from a dictionary and affix files of the OpenOffice.org project format.
SpellCheckerOpenOfficeDictionaryExtension	An extension instance implementing the SpellCheckerOpenOfficeDictionary functionality in XAML.
HunspellDictionary	A dictionary for the Hunspell spell checking algorithm.
HunspellDictionaryExtension	An extension instance implementing the HunspellDictionary functionality in XAML.
SpellCheckerCustomDictionary	Represents a custom dictionary of the spell checker.
SpellCheckerCustomDictionaryExtension	An extension object implementing the SpellCheckerCustomDictionary functionality in XAML.
SpellCheckerISpellDictionaryExtension	An extension instance implementing the SpellCheckerISpellDictionary functionality in XAML.
OptionsSpelling	Contains options that affect text processing.
SpellingExtensions	A base class for spell check extension methods.