TX Spell .NET is a very powerful spell checking engine with a tight integration into the document editors from Text Control including ASP.NET, Angular and Windows Forms. It provides fully-featured UI elements including dialog boxes and context menus when connected to a Text Control instance.
Non-Visual Spell Engine
But the product also includes the non-visual component TXSpell 
╰ TX Spell .NET for Windows Forms
╰ Proofing Namespace
╰ TXSpell Class
The TXSpell class provides properties and methods with spell checking features. that can be used for background processing. This sample shows how to use this class to create a spell checking Web API using ASP.NET Core.
Implementing the Web API Controller
The sample implements the Web API controller SpellController:
This controller implements 4 endpoints:
- Check
- CreateSuggestions
- CreateSynonyms
- DetectLanguageScopes
The following code shows the implementation of the Check method that accepts the Text to be checked and an optional language identifier:
In the method Check, a new instance of the spell checker is created and a dictionary is loaded and added to the available dictionaries using the Dictionaries.Add ╰ TX Spell .NET for Windows Forms
╰ Proofing Namespace
╰ DictionaryCollection Class
╰ Add Method
Adds objects of the type Dictionary to the collection and validates them for spell checking and suggestion operations. method.
The given Text is checked using the Check ╰ TX Spell .NET for Windows Forms
╰ Proofing Namespace
╰ TXSpell Class
╰ Check Method
Checks text for spelling errors and fills the IncorrectWordCollection at TXSpell.IncorrectWords with all incorrect words. method and the results are returned as a list of IncorrectWords.
Calling from JavaScript
On the JavaScript side, the endpoint is called using a jQuery ajax call:
The spell checking functions are encapsulated in a private scope and exposed as properties in the TXSpell JavaScript object. This way, the check method can be called like this in the sample:
On a button click, the function checkText is called:
Demo Screenshots
The following screenshot shows the sample after the Check button has been clicked:
Create Suggestions:
Create Synonyms:
Detect Languages:
Download the sample project and test this on your own.
