Use a custom spell-check engine

    Plug an application-owned spelling engine into the same review workflow used by the native editor. Implement the shared ISpellCheckerEngine contract, then select Custom mode.

    An engine instance has one active native editor owner; give independent editors separate engine instances.

    Actual spelling review showing the native suggestion and replacement workflow.
    Actual spelling review showing the native suggestion and replacement workflow.

    Use it in your application

    The engine in the example is your implementation of the shared spelling interface. Inspect the package API for its exact methods before implementing it.

    Supply predictable local behavior for checking, suggestions and disposal. Keep slow network work out of synchronous spelling calls.

    Test cancellation, document changes and custom-word policy with the engine you deploy. The editor cannot infer those behaviors from an interface declaration.

    editor.SpellCheckOptions.CustomSpellCheckerEngine = engine;
    editor.SpellCheckOptions.SpellChecker = SpiceLogic.HtmlEditor.Abstractions.Entities.SpellCheck.SpellCheckerEngineTypes.Custom;

    Members

    These signatures come from the delivered 1.0.2 assemblies and XML documentation. Cancellation tokens can be supplied to awaited operations. Follow the source-specific notes above when adapting a WPF integration.

    MemberSignature
    AddToUserDictionaryvoid AddToUserDictionary(string word)
    Disposevoid Dispose()
    Initializevoid Initialize(string dictionaryPath, string affixPath, string userDictionaryPath)
    Spellbool Spell(string word)
    SuggestIEnumerable<string> Suggest(string word, Nullable<int> max)

    Continue with

    Last updated on Oct 18, 2026

    Put this into practice.

    Start with the C# Avalonia sample. Restore this edition's package and install the native browser prerequisites before running it.

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