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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Reactive.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using PortableLibraryProfile7;
namespace WinFormsApp45_NuGet
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
var clock = MyExtensions.GetClock();
var input = Observable.FromEventPattern(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.ObserveOn(this).Subscribe(s =>
{
label1.Text = s.ToString();
});
}
}
}
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