Use async await pattern inside any method

async_button_click.cs

button.Click += async (x,y) => {
				int parameter = 1;
				System.Threading.Tasks.Task<bool> task;
				task = Task.Run(() => 
					{
						System.Threading.Thread.Sleep(3000);
						return parameter == 1;
					});
				button.Text = "Waiting...";
				await task;
				if  (task.Result)
				{
					button.Text = "TRUE";
				}
				else 
				{
					button.Text = "FALSE";
				}
			};