public string GetWikiPageId(string country, string city)
{
return(AllCities
.Where(cityInfo => cityInfo.Name == city && cityInfo.Country == country)
.Select(cityInfo => cityInfo.WikiPageId)
.FirstOrDefault());
}
/// <summary>
/// get city name by city id
/// </summary>
/// <param name="vCityId">city id</param>
/// <returns></returns>
public static string GetCityName(string vCityId)
{
return(AllCities.
Where(ci => ci.City != null && ci.City.ItemId.ToString() == vCityId).
Select(ci => ci.City.ItemName).
DefaultIfEmpty(string.Empty).
FirstOrDefault());
}
private void autoSuggestBox_TextChanged(AutoSuggestBox sender, AutoSuggestBoxTextChangedEventArgs args)
{
if (args.Reason == AutoSuggestionBoxTextChangeReason.UserInput)
{
SearchSuggestion = AllCities.Where(x => x.City.StartsWith(sender.Text))
.Select(x => $"{x.City}({x.Prov})")
.ToList(); //上海（直辖市）
autoSuggestBox.ItemsSource = SearchSuggestion;
}
}
public bool IsRecognizedCity(string country, string city)
{
return(AllCities
.Where(cityInfo =>
String.Compare(
cityInfo.Country,
country,
StringComparison.OrdinalIgnoreCase) == 0 &&
String.Compare(
cityInfo.Name,
city,
StringComparison.OrdinalIgnoreCase) == 0)
.Count() > 0);
}
public string GetWeatherAreaCode(string country, string city)
{
return(AllCities
.Where(cityInfo =>
String.Compare(
cityInfo.Country,
country,
StringComparison.OrdinalIgnoreCase) == 0 &&
String.Compare(
cityInfo.Name,
city,
StringComparison.OrdinalIgnoreCase) == 0)
.Select(cityInfo => cityInfo.WeatherAreaCode)
.FirstOrDefault());
}
public void PopulateCityCollection(string country, ICollection <string> cities)
{
if (cities == null)
{
throw new ArgumentNullException("\"cities\" argument must not be null");
}
var cityCollection = AllCities
.Where(city => city.Country == country)
.Select(city => city.Name);
foreach (var city in cityCollection)
{
cities.Add(city);
}
}
private void autoSuggestBox_QuerySubmitted(AutoSuggestBox sender, AutoSuggestBoxQuerySubmittedEventArgs args)
{
var resultList = AllCities.Where(x => $"{x.City}({x.Prov})".StartsWith(sender.Text)).ToList();
SearchResult.Clear();
if (resultList.Count == 1) //回车能够直接添加，而不需要再次点击listView
{
var resultCity = resultList[0];
ParentPage.AddCity(resultCity);
}
else
{
foreach (var item in resultList)
{
SearchResult.Add(item);
}
}
}
private void OnCityInputChange(object sender, TextChangedEventArgs e)
{
Cities = new ObservableCollection <City>(AllCities.Where(x => x.Name.ToLower().Contains(e.NewTextValue.ToLower())).ToList());
}