private void SpellChecker_MisspelledWord(object sender, NetSpell.SpellChecker.SpellingEventArgs e)
{
this.UpdateDisplay(this.SpellChecker.Text, e.Word,
e.WordIndex, e.TextIndex);
//turn on ignore all option
this.IgnoreAllButton.Enabled = true;
this.ReplaceAllButton.Enabled = true;
//generate suggestions
SpellChecker.Suggest();
//display suggestions
this.SuggestionList.Items.AddRange((string[])SpellChecker.Suggestions.ToArray(typeof(string)));
}
/// <summary>
/// Did you mean suggestion.
/// </summary>
private static string DidYouMean(string dictionaryFile, string searchQuery, List<string> searchTerms)
{
if (searchTerms != null)
{
Spelling SpellChecker = null;
WordDictionary WordDictionary = null;
#region "Word dictionary"
// If not in cache, create new
WordDictionary = new WordDictionary();
WordDictionary.EnableUserFile = false;
// Getting folder for dictionaries
string folderName = HttpContext.Current.Request.MapPath("~/App_Data/Dictionaries/");
// Check if dictionary file exists
string fileName = Path.Combine(folderName, dictionaryFile);
if (!File.Exists(fileName))
{
EventLogProvider eventLog = new EventLogProvider();
eventLog.LogEvent(EventLogProvider.EVENT_TYPE_ERROR, DateTime.Now, "DidYouMean webpart", "Dictionary file not found!");
return String.Empty;
}
WordDictionary.DictionaryFolder = folderName;
WordDictionary.DictionaryFile = dictionaryFile;
// Load and initialize the dictionary
WordDictionary.Initialize();
#endregion
#region "SpellCheck"
// Prepare spellchecker
SpellChecker = new Spelling();
SpellChecker.Dictionary = WordDictionary;
SpellChecker.SuggestionMode = Spelling.SuggestionEnum.NearMiss;
bool suggest = false;
// Check all searched terms
foreach (string term in searchTerms)
{
if (term.Length > 2)
{
SpellChecker.Suggest(term);
ArrayList al = SpellChecker.Suggestions;
// If there are some suggestions
if ((al != null) && (al.Count > 0))
{
suggest = true;
// Expression to find term
Regex regex = RegexHelper.GetRegex("([\\+\\-\\s\\(]|^)" + term + "([\\s\\)]|$)");
// Change term in original search query
string suggestion = "$1" + startTag + al[0] + endTag + "$2";
searchQuery = regex.Replace(searchQuery, suggestion);
}
}
}
#endregion
if (suggest)
{
return searchQuery;
}
}
return String.Empty;
}