private async void StartButton_Click(object sender, RoutedEventArgs e)        {            // ExampleMethodAsync returns a Task
     
       and has an int result.            // A value is assigned to intTask when ExampleMethodAsync reaches            // an await.            try            {                Task
      
        intTask = ExampleMethodAsync();                // You can do other work here that doesn't require the result from                // ExampleMethodAsync. . . .                // You can access the int result when ExampleMethodAsync completes.                int intResult = await intTask;                // Or you can combine the previous two steps:                //int intResult = await ExampleMethodAsync();                // Process the result (intResult). . . .            }            catch (Exception)            {                // Process the exception. . . .            }        }        public async Task
       
         ExampleMethodAsync()        {            var httpClient = new HttpClient();            // At the await expression, execution in this method is suspended, and            // control returns to the caller of ExampleMethodAsync.            // Variable exampleInt is assigned a value when GetStringAsync completes.            int exampleInt = (await httpClient.GetStringAsync("http://msdn.microsoft.com")).Length;            // You can break the previous line into several steps to clarify what happens:            //Task
        
          contentsTask = httpClient.GetStringAsync("http://msdn.microsoft.com");            //string contents = await contentsTask;            //int exampleInt = contents.Length;             // Continue with whatever processing is waiting for exampleInt. . . .            // After the return statement, any method that's awaiting            // ExampleMethodAsync can get the integer result.            return exampleInt;        }