private async Task GetSuggestionsAsync(string str, SearchSuggestionCollection suggestions)
{
// Cancel the previous suggestion request if it is not finished.
if (currentHttpTask != null)
{
currentHttpTask.AsAsyncOperation<string>().Cancel();
//Debug.WriteLine(" - cancelling task {0} status: {1}", currentHttpTask.Id, currentHttpTask.Status);
}
// Get the suggestions from an open search service.
currentHttpTask = httpClient.GetStringAsync(str);
Debug.WriteLine(" + task created, id: {0} string: {1}", currentHttpTask.Id, str);
string response = await currentHttpTask;
// inject a delay to simulate the time for the web response
await Task.Delay(rand.Next(50, 6000));
JsonArray parsedResponse = JsonArray.Parse(response);
if (parsedResponse.Count > 1)
{
foreach (JsonValue value in parsedResponse[1].GetArray())
{
suggestions.AppendQuerySuggestion(value.GetString());
//Debug.WriteLine("\n Search Result ({0}): {1}", str, value.GetString());
if (suggestions.Size >= MainPage.SearchPaneMaxSuggestions)
{
break;
}
}
}
}
private void AddSuggestionFromNode(IXmlNode node, SearchSuggestionCollection suggestions)
{
string text = "";
string description = "";
string url = "";
string imageUrl = "";
string imageAlt = "";
foreach (IXmlNode subNode in node.ChildNodes)
{
if (subNode.NodeType != NodeType.ElementNode)
{
continue;
}
if (subNode.NodeName.Equals("Text", StringComparison.CurrentCultureIgnoreCase))
{
text = subNode.InnerText;
}
else if (subNode.NodeName.Equals("Description", StringComparison.CurrentCultureIgnoreCase))
{
description = subNode.InnerText;
}
else if (subNode.NodeName.Equals("Url", StringComparison.CurrentCultureIgnoreCase))
{
url = subNode.InnerText;
}
else if (subNode.NodeName.Equals("Image", StringComparison.CurrentCultureIgnoreCase))
{
if (subNode.Attributes.GetNamedItem("source") != null)
{
imageUrl = subNode.Attributes.GetNamedItem("source").InnerText;
}
if (subNode.Attributes.GetNamedItem("alt") != null)
{
imageAlt = subNode.Attributes.GetNamedItem("alt").InnerText;
}
}
}
if (string.IsNullOrWhiteSpace(text))
{
// No proper suggestion item exists
}
else if (string.IsNullOrWhiteSpace(url))
{
suggestions.AppendQuerySuggestion(text);
}
else
{
// The following image should not be used in your application for Result Suggestions. Replace the image with one that is tailored to your content
Uri uri = string.IsNullOrWhiteSpace(imageUrl) ? new Uri("ms-appx:///Assets/SDK_ResultSuggestionImage.png") : new Uri(imageUrl);
RandomAccessStreamReference imageSource = RandomAccessStreamReference.CreateFromUri(uri);
suggestions.AppendResultSuggestion(text, description, url, imageSource, imageAlt);
Debug.WriteLine("\n Search Result ({0}): {1}", text, description);
}
}
public static async Task PopulateSuggestionsAsync(string queryText, SearchSuggestionCollection results)
{
// if we don't have at least three characters to work with, do nothing...
if(queryText.Length < 3)
return;
// how many?
int maxSuggestions = 5;
// get the list...
var suggestions = await ReportItem.GetSearchSuggestionsAsync(queryText);
// sort the suggestions...
var titles = new List<string>();
foreach (var title in suggestions.Keys)
titles.Add(title);
titles.Sort();
// do we have one that we can use as a recommendation?
ReportItem recommendation = null;
foreach (var title in titles)
{
if (suggestions[title].Count == 1)
{
recommendation = suggestions[title][0];
break;
}
}
// if we have a recommendation only show three suggestions...
if (recommendation != null)
maxSuggestions -= 2;
// add the suggestions...
foreach (var title in titles)
{
results.AppendQuerySuggestion(title);
// enough?
if (results.Size == maxSuggestions)
break;
}
// add the recommendation...
if (recommendation != null)
{
// we need an image...
var viewItem = new ReportViewItem(recommendation);
var imageUri = await new ReportImageCacheManager().GetLocalImageUriAsync(viewItem);
// add the suggestion...
results.AppendSearchSeparator("Recommendation");
results.AppendResultSuggestion(recommendation.Title, recommendation.Description, recommendation.Id.ToString(),
RandomAccessStreamReference.CreateFromUri(new Uri(imageUri)), recommendation.Title);
}
}
/// <summary>
/// Completes the retreval of suggestions from the web service
/// </summary>
/// <param name="str">User query string</param>
/// <param name="suggestions">Suggestions list to append new suggestions</param>
/// <returns></returns>
private async Task GetSuggestionsAsync(string str, SearchSuggestionCollection suggestions)
{
// Cancel the previous suggestion request if it is not finished.
if (currentHttpTask != null)
{
currentHttpTask.AsAsyncOperation<string>().Cancel();
}
// Get the suggestions from an open search service.
currentHttpTask = httpClient.GetStringAsync(str);
string response = await currentHttpTask;
JsonArray parsedResponse = JsonArray.Parse(response);
if (parsedResponse.Count > 1)
{
foreach (JsonValue value in parsedResponse[1].GetArray())
{
suggestions.AppendQuerySuggestion(value.GetString());
}
}
}
/// <summary>
/// Completes the retreval of suggestions from the web service
/// </summary>
/// <param name="str">User query string</param>
/// <param name="suggestions">Suggestions list to append new suggestions</param>
/// <returns></returns>
private async Task GetSuggestionsAsync(string str, SearchSuggestionCollection suggestions)
{
// Cancel the previous suggestion request if it is not finished.
if (currentHttpTask != null)
{
currentHttpTask.AsAsyncOperation<string>().Cancel();
}
// Get the suggestions from an open search service.
currentHttpTask = httpClient.GetStringAsync(str);
string response = await currentHttpTask;
JsonObject jsonObject = JsonObject.Parse(response);
jsonObject.ContainsKey("data");
String test1 = jsonObject["data"].GetString();
string[] test = test1.Split('|');
foreach (string value in test)
{
suggestions.AppendQuerySuggestion(value);
}
}
private async Task GetSuggestionsAsync(string str, SearchSuggestionCollection suggestions)
{
// Cancel the previous suggestion request if it is not finished.
if (currentXmlRequestOp != null)
{
currentXmlRequestOp.Cancel();
}
// Get the suggestion from a web service.
currentXmlRequestOp = XmlDocument.LoadFromUriAsync(new Uri(str));
XmlDocument doc = await currentXmlRequestOp;
await Task.Delay(rand.Next(10, 5000));
Debug.WriteLine("** response size: {0}", doc.GetXml().Length);
currentXmlRequestOp = null;
XmlNodeList nodes = doc.GetElementsByTagName("Section");
if (nodes.Count > 0)
{
IXmlNode section = nodes[0];
foreach (IXmlNode node in section.ChildNodes)
{
if (node.NodeType != NodeType.ElementNode)
{
continue;
}
if (node.NodeName.Equals("Separator", StringComparison.CurrentCultureIgnoreCase))
{
string title = null;
IXmlNode titleAttr = node.Attributes.GetNamedItem("title");
if (titleAttr != null)
{
title = titleAttr.NodeValue.ToString();
}
suggestions.AppendSearchSeparator(string.IsNullOrWhiteSpace(title) ? "Suggestions" : title);
}
else
{
AddSuggestionFromNode(node, suggestions);
}
}
}
}
private async Task GenerateSuggestions(StorageFile file, SearchSuggestionCollection suggestions)
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(await FileIO.ReadTextAsync(file));
XmlNodeList nodes = doc.GetElementsByTagName("Section");
if (nodes.Count > 0)
{
IXmlNode section = nodes[0];
foreach (IXmlNode node in section.ChildNodes)
{
if (node.NodeType != NodeType.ElementNode)
{
continue;
}
if (node.NodeName.Equals("Separator", StringComparison.CurrentCultureIgnoreCase))
{
string title = node.Attributes.GetNamedItem("title").NodeValue.ToString();
if (string.IsNullOrWhiteSpace(title))
{
suggestions.AppendSearchSeparator(title);
}
}
else
{
AddSuggestionFromNode(node, suggestions);
}
}
}
}
public AppendToSearchSuggestionCollectionVisitor(SearchSuggestionCollection collection)
{
if (collection == null) throw new ArgumentNullException("collection");
_collection = collection;
}
private void addToSearchResults(JsonArray jsonArray, SearchSuggestionCollection suggestionResult, int maxResults)
{
if (jsonArray.Count > 1) {
foreach (JsonValue value in jsonArray[1].GetArray()) {
suggestionResult.AppendQuerySuggestion(value.GetString());
Debug.WriteLine("Suggestion: " + value.GetString());
if (suggestionResult.Size >= MainPage.SearchPaneMaxSuggestions) {
break;
}
}
}
}