# TX Spell .NET for WPF > Spell check WPF apps with a TXSpellChecker declared in XAML: TextControl and RichTextBox, a spelling dialog, user dictionaries, hyphenation and a thesaurus. - **Product:** TX Spell .NET for WPF - **Kind:** Topic - **Path:** TX Spell .NET for WPF - **1557 words** - **Web URL:** https://docs.textcontrol.com/tx-spell-dotnet-wpf/ - **LLMs URL:** https://docs.textcontrol.com/tx-spell-dotnet-wpf/llms.txt - **LLMs-Full URL:** https://docs.textcontrol.com/tx-spell-dotnet-wpf/llms-full.txt --- TX Spell .NET for WPF adds spell checking to a WPF application. You place the component in your window and connect it to the control whose text should be checked: misspelled words are marked as the user types, suggestions are offered, and a dialog walks through the document word by word. It works with TX Text Control, with the standard WPF text controls, and with text you hand it directly. Spelling is not all of it. The same component hyphenates text, detects which language a passage is written in, and looks up synonyms, so one set of language data serves the spelling, the line breaks and the thesaurus in your application. The language data is the freely distributable Hunspell dictionaries from OpenOffice, which cover more than 60 languages, including right-to-left languages such as Arabic, Farsi, Hebrew and Urdu. English is installed with the component; the others are downloaded and shipped with your application. ![A WPF TextControl with misspelled words underlined in red and the spell check context menu of the word "sampke", with suggestions, Ignore, Ignore All, Add To Dictionary, Spell Check Dialog and Options.](https://docs.textcontrol.com/assets/img/tx-spell-dotnet-wpf/textcontrol-context-menu.e3692bcd.webp) ### What It Gives Your Application | Task | Main classes | |---|---| | Check spelling as the user types, or on demand | [TXSpellChecker](https://docs.textcontrol.com/tx-spell-dotnet-wpf/reference/txtextcontrol-wpf-proofing/txspellchecker/llms-full.txt) | | Walk a user through the misspelled words with suggestions | [SpellCheckDialog](https://docs.textcontrol.com/tx-spell-dotnet-wpf/reference/txtextcontrol-wpf-proofing/spellcheckdialog/llms-full.txt) | | Check against dictionaries in the Hunspell and OpenOffice format | [OpenOfficeDictionary](https://docs.textcontrol.com/tx-spell-dotnet-wpf/reference/txtextcontrol-proofing/openofficedictionary/llms-full.txt) | | Let users add their own words, and keep them between sessions | [UserDictionary](https://docs.textcontrol.com/tx-spell-dotnet-wpf/reference/txtextcontrol-proofing/userdictionary/llms-full.txt) | | Hyphenate text with Hunspell hyphenation rules | [HyphenationList](https://docs.textcontrol.com/tx-spell-dotnet-wpf/reference/txtextcontrol-proofing/hyphenationlist/llms-full.txt) | | Offer synonyms from a thesaurus | [SynonymList](https://docs.textcontrol.com/tx-spell-dotnet-wpf/reference/txtextcontrol-proofing/synonymlist/llms-full.txt) | | Detect which language a passage is written in | [LanguageScope](https://docs.textcontrol.com/tx-spell-dotnet-wpf/reference/txtextcontrol-proofing/languagescope/llms-full.txt) | | Check text in code, with no control and no user interface | [TXSpell](https://docs.textcontrol.com/tx-spell-dotnet-wpf/reference/txtextcontrol-proofing/txspell/llms-full.txt) | Any number of dictionaries and user dictionaries can be loaded at the same time, so a document written in more than one language is checked in all of them. One spell checker serves every control in a window — you do not need an instance per editor. With TX Text Control, connecting the two takes no C# or Visual Basic code: declare the spell checker as a resource in XAML, set the editor's spell checker to its key and switch on spell checking, and misspelled words are underlined as they are typed and corrected from the context menu. ### Who This Documentation Is for It is written for .NET developers building WPF applications, and it assumes you know C# or Visual Basic and XAML. It does not assume you know anything about TX Spell .NET, or that you use TX Text Control: the component checks other controls just as well. ### How This Documentation Is Organized - **[Overview](https://docs.textcontrol.com/tx-spell-dotnet-wpf/overview/llms-full.txt)** explains what the component does, how its parts fit together, where it runs, which languages it checks and how it is licensed. - **[Installation Guide](https://docs.textcontrol.com/tx-spell-dotnet-wpf/installation/llms-full.txt)** covers the requirements, the packages and the licensing you need before you write any code, and the language data you ship with your application. - **[Getting Started](https://docs.textcontrol.com/tx-spell-dotnet-wpf/getting-started/llms-full.txt)** connects the component to a control and checks its first document. - **[Spell Checking](https://docs.textcontrol.com/tx-spell-dotnet-wpf/spell-checking/llms-full.txt)** covers checking as the user types and on demand, suggestions, ignore settings, and checking several controls at once. - **[Dictionaries and Languages](https://docs.textcontrol.com/tx-spell-dotnet-wpf/dictionaries/llms-full.txt)** covers Hunspell dictionaries, user dictionaries, documents in more than one language, and language detection. - **[Hyphenation](https://docs.textcontrol.com/tx-spell-dotnet-wpf/hyphenation/llms-full.txt)** hyphenates text with Hunspell hyphenation lists, in TX Text Control and in code. - **[Synonyms and Thesaurus](https://docs.textcontrol.com/tx-spell-dotnet-wpf/synonyms/llms-full.txt)** offers synonyms in the context menu and looks them up in code. - **[User Interface](https://docs.textcontrol.com/tx-spell-dotnet-wpf/user-interface/llms-full.txt)** covers the spell check dialog, the options dialog, the context menus and the suggestion controls, and how to customize and localize them. - **[Integration Guide](https://docs.textcontrol.com/tx-spell-dotnet-wpf/integration/llms-full.txt)** connects the component to TX Text Control .NET for WPF, the WPF RichTextBox and other controls, and to the Document Editor of TX Text Control .NET Server. - **[Deployment Guide](https://docs.textcontrol.com/tx-spell-dotnet-wpf/deployment/llms-full.txt)** covers the assemblies and language data folders you ship, and how to publish and license your WPF application. - **[Troubleshooting](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/llms-full.txt)** collects the common problems with installation, licensing, dictionaries and deployment, and how to solve them. - **[Examples](https://docs.textcontrol.com/tx-spell-dotnet-wpf/examples/llms-full.txt)** lists the sample applications and code examples. - **[What's New](https://docs.textcontrol.com/tx-spell-dotnet-wpf/whats-new/llms-full.txt)** describes what changed in each version, the service packs, the breaking changes and the deprecated APIs. - **[API Reference](https://docs.textcontrol.com/tx-spell-dotnet-wpf/reference/llms-full.txt)** documents every class, property, method and event of the .NET API. ### The .NET API The [.NET API](https://docs.textcontrol.com/tx-spell-dotnet-wpf/reference/dotnet-api/llms-full.txt) is divided into two namespaces. | Namespace | What is in it | |---|---| | [TXTextControl.Proofing](https://docs.textcontrol.com/tx-spell-dotnet-wpf/reference/txtextcontrol-proofing/llms-full.txt) | The language data and what is common to both platforms: dictionaries, user dictionaries, hyphenation lists, synonym lists, and the events that report an incorrect word. | | [TXTextControl.WPF.Proofing](https://docs.textcontrol.com/tx-spell-dotnet-wpf/reference/txtextcontrol-wpf-proofing/llms-full.txt) | What belongs to WPF alone: the spell checking component, the spelling and options dialogs, and the controls they are built from. | ### Where to Start 1. [Overview](https://docs.textcontrol.com/tx-spell-dotnet-wpf/overview/llms-full.txt): what the component does and what the language data is. 2. [Installation Guide](https://docs.textcontrol.com/tx-spell-dotnet-wpf/installation/llms-full.txt): what has to be in place first. 3. [Getting Started](https://docs.textcontrol.com/tx-spell-dotnet-wpf/getting-started/llms-full.txt): checking a first document. 4. [TXSpellChecker](https://docs.textcontrol.com/tx-spell-dotnet-wpf/reference/txtextcontrol-wpf-proofing/txspellchecker/llms-full.txt): the class you will spend the most time in. ### Getting Help - **Something does not work.** [Troubleshooting](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/llms-full.txt) collects the common problems with packages, the toolbox, licenses, dictionaries and deployment, and how to fix them. - **You need working code.** [Examples](https://docs.textcontrol.com/tx-spell-dotnet-wpf/examples/llms-full.txt) lists the samples the setup installs and the sample repositories of [Text Control on GitHub](https://github.com/TextControl). - **You need Text Control's support team.** Registered users and developers who evaluate the trial version get free technical support, and the support engineers answer in English and German. The [contact page](https://www.textcontrol.com/contact/) lists the ways to reach them, and the subscription that comes with a license includes technical support, as the [Licensing Overview](https://docs.textcontrol.com/tx-spell-dotnet-wpf/overview/licensing/#subscription-and-updates) describes. --- ## In This Section - [Deployment Guide](https://docs.textcontrol.com/tx-spell-dotnet-wpf/deployment/llms-full.txt): Deploy a WPF application with TX Spell .NET: TXSpell.dll, TXSpell.WPF.dll, the language data folders, publishing on .NET or .NET Framework, and licensing. - [Dictionaries and Languages](https://docs.textcontrol.com/tx-spell-dotnet-wpf/dictionaries/llms-full.txt): Check WPF text in US English and about 40 more languages: Hunspell .dic and .aff files, the Dictionaries collection, user dictionaries and language detection. - [Examples](https://docs.textcontrol.com/tx-spell-dotnet-wpf/examples/llms-full.txt): Sample code for TX Spell .NET for WPF: the WPF samples of the setup in C# and Visual Basic, GitHub repositories on TXSpell or Windows Forms, and blog articles. - [Getting Started](https://docs.textcontrol.com/tx-spell-dotnet-wpf/getting-started/llms-full.txt): Start spell checking in WPF: tutorials for TX Text Control in XAML, for the WPF RichTextBox, and for checking text in a console app with the TXSpell class. - [Hyphenation](https://docs.textcontrol.com/tx-spell-dotnet-wpf/hyphenation/llms-full.txt): Divide words at line ends in WPF apps with TX Spell .NET: Hunspell lists for 24 languages, a TextControl that hyphenates, and GetHyphenationPoints in code. - [Installation Guide](https://docs.textcontrol.com/tx-spell-dotnet-wpf/installation/llms-full.txt): Set up TX Spell .NET for WPF on a development machine or build server: requirements, setup, NuGet sources, XAML resources, language data, licenses, upgrades. - [Integration Guide](https://docs.textcontrol.com/tx-spell-dotnet-wpf/integration/llms-full.txt): Integrate TX Spell .NET for WPF with TX Text Control, a RichTextBox, labels and other WPF controls, or the Document Editor of TX Text Control .NET Server. - [Overview](https://docs.textcontrol.com/tx-spell-dotnet-wpf/overview/llms-full.txt): TX Spell .NET for WPF at a glance: the XAML spell checker and the TXSpell class, how they fit together, supported platforms and languages, and licensing. - [API Reference](https://docs.textcontrol.com/tx-spell-dotnet-wpf/reference/llms-full.txt): Every class and member of TX Spell .NET for WPF in TXTextControl.Proofing and TXTextControl.WPF.Proofing: C# and Visual Basic declarations and parameters. - [Spell Checking](https://docs.textcontrol.com/tx-spell-dotnet-wpf/spell-checking/llms-full.txt): Spell check WPF windows with one TXSpellChecker resource: underline words in TextControl, validate a TextBox, open a dialog, read suggestions and ignore words. - [Synonyms and Thesaurus](https://docs.textcontrol.com/tx-spell-dotnet-wpf/synonyms/llms-full.txt): Add a thesaurus to WPF applications: synonym lists for US English and more than 20 other languages, the Thesaurus Dialog of TX Text Control, and CreateSynonyms. - [Troubleshooting](https://docs.textcontrol.com/tx-spell-dotnet-wpf/troubleshooting/llms-full.txt): Solve TX Spell .NET for WPF problems from the symptom: a TXSpellChecker unknown in XAML, package errors, trial dialogs, dictionaries not found and deployment. - [User Interface](https://docs.textcontrol.com/tx-spell-dotnet-wpf/user-interface/llms-full.txt): What WPF users see of TX Spell .NET: the spelling dialog, the options dialog, the context menu of a misspelled word and suggestion lists, and how to change it. - [What's New](https://docs.textcontrol.com/tx-spell-dotnet-wpf/whats-new/llms-full.txt): TX Spell .NET for WPF 3.0 to 11.0: what each version added, from the spell check dialog to .NET 8 packages, service packs, breaking changes and deprecated APIs. --- ## Nearby - **Next:** [Overview](https://docs.textcontrol.com/tx-spell-dotnet-wpf/overview/llms-full.txt)