SearchPaneSuggestionsRequestedEventArgs Class

Definition

Provides data for a suggestionsrequested event that is associated with a searchPane object.

public ref class SearchPaneSuggestionsRequestedEventArgs sealed
class SearchPaneSuggestionsRequestedEventArgs sealed
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.ApplicationModel.Search.SearchContract), 65536)]
[Windows.Foundation.Metadata.Deprecated("SearchPaneSuggestionsRequestedEventArgs may be altered or unavailable for releases after Windows 10.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 65536, typeof(Windows.ApplicationModel.Search.SearchContract))]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
public sealed class SearchPaneSuggestionsRequestedEventArgs
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.ApplicationModel.Search.SearchContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Deprecated("SearchPaneSuggestionsRequestedEventArgs may be altered or unavailable for releases after Windows 10.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 65536, "Windows.ApplicationModel.Search.SearchContract")]
public sealed class SearchPaneSuggestionsRequestedEventArgs
Public NotInheritable Class SearchPaneSuggestionsRequestedEventArgs
Inheritance
SearchPaneSuggestionsRequestedEventArgs
Attributes
Implements

Windows 10 requirements

Device family
Windows Desktop Extension SDK (introduced in 10.0.10240.0)
Xbox One Extensions for the UWP (introduced in 10.0.10586.0)
API contract
Windows.ApplicationModel.Search.SearchContract (introduced in v1.0)

Examples

The Search contract sample demonstrates how to respond to a suggestionsrequested event.

Note

You can access information about the event from the searchPaneSuggestionsRequestedEventArgs object that is passed to your suggestionsrequested handler.

private void OnSearchPaneSuggestionsRequested(SearchPane sender, SearchPaneSuggestionsRequestedEventArgs e)
{
    var queryText = e.QueryText;
    if (string.IsNullOrEmpty(queryText))
    {
        MainPage.Current.NotifyUser("Use the search pane to submit a query", NotifyType.StatusMessage);
    }
    else
    {
        var request = e.Request;
        var linguisticDetails = e.LinguisticDetails;
        foreach (string alternative in linguisticDetails.QueryTextAlternatives)
        {
            foreach (string suggestion in suggestionList)
            {
                if (suggestion.StartsWith(alternative, StringComparison.CurrentCultureIgnoreCase))
                {
                    // Add suggestion to Search Pane
                    request.SearchSuggestionCollection.AppendQuerySuggestion(suggestion);

                    // Break since the Search Pane can show at most 5 suggestions
                    if (request.SearchSuggestionCollection.Size >= MainPage.SearchPaneMaxSuggestions)
                    {
                        break;
                    }
                }
            }

            // Break since the Search Pane can show at most 5 suggestions
            if (request.SearchSuggestionCollection.Size >= MainPage.SearchPaneMaxSuggestions)
            {
                break;
            }
        }

        if (request.SearchSuggestionCollection.Size > 0)
        {
            MainPage.Current.NotifyUser("Suggestions provided for query: " + queryText, NotifyType.StatusMessage);
        }
        else
        {
            MainPage.Current.NotifyUser("No suggestions provided for query: " + queryText, NotifyType.StatusMessage);
        }
    }
}
// Register the onsuggestionsrequested event in your apps global scope, for example default.js, so that it is registered as soon as your app is launched.
Windows.ApplicationModel.Search.SearchPane.getForCurrentView().onsuggestionsrequested = function (eventObject) {
    var queryText = eventObject.queryText, suggestionRequest = eventObject.request, linguisticDetails = eventObject.linguisticDetails;

    var queryAlternatives = linguisticDetails.queryTextAlternatives;
    var maxNumberOfSuggestions = 5;
    for (var i = 0, len = queryAlternatives.length, done = false; i < len && !done; i++) {
        // toLowerCase not necessary for East Asian languages. Preserves compatibility when non East Asian suggestions are mixed in with East Asian suggestions.
        var alternative = queryAlternatives[i].toLowerCase();
        for (var j = 0, suggestionLength = suggestionList.length; j < suggestionLength; j++) {
            if (suggestionList[j].substr(0, alternative.length).toLowerCase() === alternative) {
                suggestionRequest.searchSuggestionCollection.appendQuerySuggestion(suggestionList[j]);
                if (suggestionRequest.searchSuggestionCollection.size === maxNumberOfSuggestions) {
                    done = true;
                    break;
                }
            }
        }
    }

    // Construct list of alternatives so we can output them.
    var alternatives = "";
    for (var k = 0, alternativeCount = queryAlternatives.length; k < alternativeCount; k++) {
        alternatives += queryAlternatives[k];
    }
    if (suggestionRequest.searchSuggestionCollection.size > 0) {
        WinJS.log && WinJS.log("Suggestions provided for query: " + queryText + "\nUsing alternatives: " + alternatives, "sample", "status");
    } else {
        WinJS.log && WinJS.log("No suggestions provided for query: " + queryText + "\nUsing alternatives: " + alternatives, "sample", "status");
    }
};
searchPane.SuggestionsRequested += new TypedEventHandler<SearchPane, SearchPaneSuggestionsRequestedEventArgs>(OnSearchPaneSuggestionsRequested);

Remarks

This object is passed to an app's suggestionsrequested event handler.

Use your app to provide suggestions

There are a few different ways you can get suggestions for your app to provide:

  • From an app-defined, static, local list
  • From a URL that supports suggestions in OpenSearch format
  • From a URL that supports suggestions in XML format After you obtain suggestions, you must append them to the collection of suggestions to display for the user's query. Access this collection with the searchPaneSuggestionsRequest.searchSuggestionCollection property.

Note

If you want to provide result suggestions, you must also listen for and handle the resultsuggestionchosen event.

Properties

Language

The Internet Engineering Task Force (IETF) language tag (BCP 47 standard) that identifies the language currently associated with the user's text input device.

LinguisticDetails

An object that provides linguistic information about query text that the user is entering through an Input Method Editor (IME).

QueryText

The text that the app should provide suggestions for and that was in the search box when the suggestionsrequested event fired.

Request

An object that stores suggestions and information about the request.

Applies to

See also