MessageBox for Windows Store apps

Code snippets for a message box in Windows Store apps:

Simple Messagebox

public async void ShowMessage(string message)
{
   MessageDialog msg= new MessageDialog(message);
   await msg.ShowAsync();
}

A more complex example from Corrado's Blogs  

private  async void OnMessage(object sender, RoutedEventArgs e)
{
   MessageDialog dialog = new MessageDialog("Hello WinRT");
   UICommandInvokedHandler cmdHandler = new UICommandInvokedHandler(cmd =>
   {
      Debug.WriteLine("id:{0} label:{1}", cmd.Id, cmd.Label);
   });

   UICommand cmd1 = new UICommand("Cmd1", cmdHandler, 1);
   UICommand cmd2 = new UICommand("Cmd2", cmdHandler, 2);
   UICommand cmd3 = new UICommand("Cmd3", (cmd) =>
   {
      Debug.WriteLine("Command3 done!");
   }, 3);

   dialog.Commands.Add(cmd1);
   dialog.Commands.Add(cmd2);
   dialog.Commands.Add(cmd3);
   dialog.DefaultCommandIndex = 1;

   await dialog.ShowAsync();
   Debug.WriteLine("Dialog closed");
}