Dictionary in JQuery SpellCheck widget

19 Apr 20172 minutes to read

Essential JavaScript SpellCheck uses two different types of dictionary.

  • Default Dictionary
  • Custom Dictionary

Default Dictionary


The default dictionary is a primary dictionary file location to read the dictionary words for comparing it with the input words to identify its erroneous.

The following code example depicts the way to mention the default dictionary path and to read its content.

  • C#
  • SpellCheckController()
                if (baseDictionary == null)
                    // Here you need to specify the corresponding file name (ex. Default.dic)
                    string filePath = HttpContext.Current.Server.MapPath("~/App_Data/SpellCheck/Default.dic");
                    Stream stream = new FileStream(filePath, FileMode.Open, FileAccess.Read);
                    baseDictionary = new SpellCheckerBase(stream);

    Custom Dictionary


    The custom dictionary is a collection of custom words used for spell checking (i.e. technical terms/words, company names, etc.,).

    The following code example describes the way to mention the custom dictionary path to read its content.

  • C#
  • private readonly string _customFilePath = HttpContext.Current.Server.MapPath("~/App_Data/SpellCheck/Custom.dic"); // Here you need to specify the corresponding custom dictionary file name
            private void CustomFileRead()
                Stream stream1 = new FileStream(_customFilePath, FileMode.Open, FileAccess.ReadWrite);
                customDictionary = new SpellCheckerBase(stream1);


    The custom words are displaying within the custom dictionary file line by line (i.e. one word per line).

    Add a word to custom dictionary

    You can directly add the necessary words in the custom dictionary file or else by using the SpellCheck control public method addToDictionary to add the custom words one by one.

    Refer to the custom words section under the functionalities block to know about this feature.