private async void listView_ItemClick(object sender, ItemClickEventArgs e)
{
selectedCurrencyFile = (CurrencyFile)e.ClickedItem;
listView.SelectedItem = selectedCurrencyFile;
string date = selectedCurrencyFile.GetFileDate();
Uri uri = new Uri("http://api.nbp.pl/api/exchangerates/tables/a/" + date + "?format=xml");
string response = await client.GetStringAsync(uri);
XDocument document = XDocument.Load(new StringReader(response));
var query =
from rate in document.Root.Descendants("Rate")
let code = rate.Element("Code")
let currency = rate.Element("Currency")
let mid = rate.Element("Mid")
select new Currency()
{
Code = code.Value, Name = currency.Value, Mid = mid.Value, Date = date
};
currencyRatings = new ObservableCollection <Currency>(query);
listViewCurrency.ItemsSource = currencyRatings;
//Windows.Storage.ApplicationDataContainer roamingSettings = Windows.Storage.ApplicationData.Current.RoamingSettings;
roamingSettings.Values["currencyRatings"] = JsonConvert.SerializeObject(currencyRatings);
roamingSettings.Values["selectedCurrencyFile"] = JsonConvert.SerializeObject(selectedCurrencyFile);
}
private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)
{
// Restore values stored in session state.
//if (e.PageState != null && e.PageState.ContainsKey("years")) {
// comboBox.DataContext = e.PageState["greetingOutputText"].ToString();
//}
//Windows.Storage.ApplicationDataContainer roamingSettings = Windows.Storage.ApplicationData.Current.RoamingSettings;
if (roamingSettings.Values.ContainsKey("years"))
{
years = (ObservableCollection <string>)JsonConvert.DeserializeObject(roamingSettings.Values["years"].ToString());
comboBox.DataContext = years;
}
if (roamingSettings.Values.ContainsKey("selectedYear"))
{
selectedYear = (string)JsonConvert.DeserializeObject(roamingSettings.Values["selectedYear"].ToString());
comboBox.SelectedItem = selectedYear;
}
if (roamingSettings.Values.ContainsKey("currencyFiles"))
{
currencyFiles = (ObservableCollection <CurrencyFile>)JsonConvert.DeserializeObject(roamingSettings.Values["currencyFiles"].ToString());
listView.ItemsSource = currencyFiles;
}
if (roamingSettings.Values.ContainsKey("selectedCurrencyFile"))
{
selectedCurrencyFile = (CurrencyFile)JsonConvert.DeserializeObject(roamingSettings.Values["selectedCurrencyFile"].ToString());
listView.SelectedItem = selectedCurrencyFile;
}
if (roamingSettings.Values.ContainsKey("currencyRatings"))
{
currencyRatings = (ObservableCollection <Currency>)JsonConvert.DeserializeObject(roamingSettings.Values["currencyRatings"].ToString());
listView.SelectedItem = selectedCurrencyFile;
}
if (roamingSettings.Values.ContainsKey("selectedCurrencyRating"))
{
selectedCurrencyRating = (Currency)JsonConvert.DeserializeObject(roamingSettings.Values["selectedCurrencyRating"].ToString());
listViewCurrency.SelectedItem = selectedCurrencyRating;
}
}
private async void button_Click(object sender, RoutedEventArgs e)
{
this.currencyFiles = new ObservableCollection <CurrencyFile>();
listView.ItemsSource = currencyFiles;
string generalPath = "http://www.nbp.pl/kursy/xml/";
string yearFilePath;
string selectedYear = (string)comboBox.SelectedItem;
if (selectedYear.Equals(System.DateTime.Now.Year.ToString()))
{
yearFilePath = "dir.txt";
}
else
{
yearFilePath = "dir" + selectedYear + ".txt";
}
Uri uriObj = new Uri(generalPath + yearFilePath);
string result = await client.GetStringAsync(uriObj);
foreach (string currencyFileCode in result.Split('\n'))
{
if (!currencyFileCode.StartsWith("a"))
{
continue;
}
else
{
CurrencyFile code = new CurrencyFile(currencyFileCode);
currencyFiles.Add(code);
}
}
//Windows.Storage.ApplicationDataContainer roamingSettings = Windows.Storage.ApplicationData.Current.RoamingSettings;
roamingSettings.Values["currencyFiles"] = JsonConvert.SerializeObject(currencyFiles);
}