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using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Reactive.Linq;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
namespace SilverlightApp5_NoPlatformServices
{
public partial class MainPage : UserControl
{
public MainPage()
{
InitializeComponent();
}
private void button1_Click(object sender, RoutedEventArgs e)
{
var clock = MyExtensions.GetClock().AsQbservable().Select(_ => _).AsObservable();
var input = Observable.FromEventPattern<TextChangedEventArgs>(textBox1, "TextChanged").Select(evt => ((TextBox)evt.Sender).Text).Throttle(TimeSpan.FromSeconds(.5)).DistinctUntilChanged();
var xs = from word in input.StartWith("")
from length in Task.Factory.StartNew(() => { Thread.Sleep(500); return word.Length; })
select length;
var res = xs.CombineLatest(clock, (len, now) => now.ToString() + " - Word length = " + len);
res.ObserveOnDispatcher().Subscribe(s =>
{
label1.Text = s.ToString();
});
}
}
public class MyExtensions
{
public static IObservable<DateTime> GetClock()
{
return Observable.Interval(TimeSpan.FromSeconds(1)).Select(_ => DateTime.Now);
}
}
}
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