Thread.Sleep replacement in .NET for Windows Store

MainPage.xaml.cs

public MainPage()
{
  this.InitializeComponent();
  this.WaitForFiveSeconds();
}

private async void WaitForFiveSeconds()
{
  await System.Threading.Tasks.Task.Delay(TimeSpan.FromSeconds(5));
  // do something after 5 seconds!
}

Hate to state the obvious but in case anybody wanted a single line System.Threading.Tasks.Task.Delay(3000).Wait()

I just had the same problem and found another interesting solution that I wanted to share with you. If you really want to block the thread I would do it like this (thanks @Brannon for the "slim" hint):

// `waitHandle.Set` is never called, so we wait always until the timeout occurs
using (var waitHandle = new ManualResetEventSlim(initialState: false))
{
    waitHandle.Wait(TimeSpan.FromSeconds(5));
}

Windows Store apps embrace asynchrony - and an "asynchronous pause" is provided by Task.Delay. So within an asynchronous method, you'd write:

await Task.Delay(TimeSpan.FromSeconds(30));

... or whatever delay you want. The asynchronous method will continue 30 seconds later, but the thread will not be blocked, just as for all await expressions.