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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reactive.Linq;
using System.Threading.Tasks;
using PortableLibraryProfile7;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;
// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234238
namespace WindowsStoreApp8
{
/// <summary>
/// An empty page that can be used on its own or navigated to within a Frame.
/// </summary>
public sealed partial class MainPage : Page
{
public MainPage()
{
this.InitializeComponent();
}
/// <summary>
/// Invoked when this page is about to be displayed in a Frame.
/// </summary>
/// <param name="e">Event data that describes how this page was reached. The Parameter
/// property is typically used to configure the page.</param>
protected override void OnNavigatedTo(NavigationEventArgs e)
{
}
private void button1_Click(object sender, RoutedEventArgs e)
{
var clock = MyExtensions.GetClock().AsQbservable().Select(_ => _).AsObservable();
var txt = Observable.FromEventPattern<TextChangedEventArgs>(textBox1, "TextChanged").Select(evt => ((TextBox)evt.Sender).Text).Throttle(TimeSpan.FromSeconds(.5)).DistinctUntilChanged();
var input = from t in Observable.Timer(TimeSpan.FromMilliseconds(100))
from _ in txt
select _;
var xs = from word in input.StartWith("")
from length in Task.Run(async () => { await Task.Delay(250); return word.Length; }).AsAsyncOperation()
select length;
var res = xs.CombineLatest(clock, (len, now) => now.ToString() + " - Word length = " + len);
res.ObserveOnDispatcher().Subscribe(s =>
{
label1.Text = s.ToString();
});
}
}
}
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