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using System;
using System.Collections.Generic;
using System.Linq;
using System.Reactive.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using PortableLibraryProfile78_NuGet;
namespace WpfXbapApp45_NuGet
{
/// <summary>
/// Interaction logic for Page1.xaml
/// </summary>
public partial class Page1 : Page
{
public Page1()
{
InitializeComponent();
}
private void button1_Click(object sender, RoutedEventArgs e)
{
//
// Note: Local Qbservable compilation doesn't work in partial trust XBAP! (Cut for Rx v2.0 RTM.)
//
// var clock = MyExtensions.GetClock().AsQbservable().Select(_ => _).AsObservable();
//
var clock = MyExtensions.GetClock();
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.Run(async () => { await Task.Delay(250); 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();
});
}
}
}
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