async await demo

demo.cs

class Test
{
  public static async void Test()
  {
    var i1 = await DoWorkAsync(); //waits for the result, non-ui blocking.
    var i2 = DoWork();            //blocks ui until gets result.
  }
  
  public static async Task<int> DoWorkAsync()
  {
    //simulate long running operation.
    await Task.Delay(1000);
    return 5;
  }
  
  public static int DoWork()
  {
    Thread.Sleep(1000);
    return 5;
  }
}