Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
GetCustomDictionaries Method
Collapse the table of content
Expand the table of content

SpellCheck.GetCustomDictionaries Method

.NET Framework 4.6 and 4.5

Gets the collection of lexicon file locations that are used for custom spelling checkers on a specified text-editing control.

Namespace:  System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)

public static IList GetCustomDictionaries(
	TextBoxBase textBoxBase


Type: System.Windows.Controls.Primitives.TextBoxBase

The text-editing control whose collection of lexicon files is retrieved.

Return Value

Type: System.Collections.IList
The collection of lexicon file locations.


The textBoxBase is null.

Custom dictionaries use lexicon files, which are simple text files that have a .lex extension. Each line of a lexicon file contains a single word that is accepted as a legitimate spelling. The first line of the file can specify a locale identifier (LCID) that the dictionary applies to. If the locale is not specified, the dictionary applies to all languages. For more information, see Locale IDs. The following example shows the first few lines of a lexicon file for the English language.

#LID 1033

To specify one or more custom dictionaries for a TextBox or any class that derives from TextBoxBase, specify the location of the lexicon file by adding the URI for the file to the IList returned by the GetCustomDictionaries method.

To enable the spelling checker, set the SpellCheck.IsEnabled property to true on a TextBox or on any class that derives from TextBoxBase. All custom dictionaries for that TextBox are used in addition to the default spelling checker. For more information about the spelling checker, see SpellCheck.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4
© 2015 Microsoft