Gets or sets the spell checker's culture-specific settings. This is a dependency property.
CultureInfo object that specifies culture settings (the symbols encoding, language and phonetic specifics).
If the culture setting is changed before the text is checked completely, the remaining part of the text is checked according to new culture specifics.
The SpellChecker uses the dictionary that corresponds with the Culture value. Make sure that corresponding dictionaries for all used cultures are added to the SpellCheckerDictionaryCollection.