private static async void GetSuggestions(SearchSuggestionsRequestDeferral deferral, SearchBox sender, SearchBoxSuggestionsRequestedEventArgs args)
{
try
{
var provider = GetProvider(sender);
var query = args.QueryText;
var suggestions = await Task.Run(() => provider.GetSuggestions(CancellationToken.None, query));
var visitor = new AppendToSearchSuggestionCollectionVisitor(args.Request.SearchSuggestionCollection);
foreach (var searchSuggestion in suggestions)
{
searchSuggestion.Accept(visitor);
}
deferral.Complete();
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}
private static async void GetSuggestions(SearchSuggestionsRequestDeferral deferral, SearchBox sender, SearchBoxSuggestionsRequestedEventArgs args)
{
try
{
var provider = GetProvider(sender);
var query = args.QueryText;
var suggestions = await Task.Run(() => provider.GetSuggestions(CancellationToken.None, query));
var visitor = new AppendToSearchSuggestionCollectionVisitor(args.Request.SearchSuggestionCollection);
foreach (var searchSuggestion in suggestions)
{
searchSuggestion.Accept(visitor);
}
deferral.Complete();
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}
private async void TextName_SuggestionsRequested(SearchBox sender, SearchBoxSuggestionsRequestedEventArgs args)
{
if (!string.IsNullOrEmpty(args.QueryText))
{
var characters = ViewModel.Characters.ToList();
//var suggestions = Data.UnicodeData.Characters
// .Where(c => characters.Contains((char)c.CodePageInt))
// .SelectMany(c => c.AllNames)
// .Where(n => n.StartsWith(args.QueryText, StringComparison.CurrentCultureIgnoreCase))
// .ToList();
// used cache list of filtered unicode character objects. This is too expensive to do everytime the user types in a character.
List <Models.Character> unicodeCharacters;
SearchSuggestionsRequestDeferral deferral = null;
if (!unicodeCharactersTask.IsCompleted)
{
deferral = args.Request.GetDeferral();
unicodeCharacters = await unicodeCharactersTask;
}
else
{
unicodeCharacters = unicodeCharactersTask.Result;
}
var suggestions = unicodeCharacters
.SelectMany(c => c.AllNames)
.Where(n => n.StartsWith(args.QueryText, StringComparison.CurrentCultureIgnoreCase))
.ToList();
args.Request.SearchSuggestionCollection.AppendQuerySuggestions(suggestions);
if (deferral != null)
{
deferral.Complete();
}
}
}
