how to await a task c#
private async void myEvent()
{
Task myTask = MyFunction(); // MyFunction should return a task!
var result = await myTask;
}
private void SomeFunction()
{
// some code
// .....;
//
myEvent?.Invoke(); // Invoke myEvent -> myEvent is async
Task.WaitAny(myTask);
if(myTask.isCompleted)
DoSomething();
}await with using c#
using System;
using System.Threading.Tasks;
namespace AsyncBreakfast
{
class Program
{
static void Main(string[] args)
{
Coffee cup = PourCoffee();
Console.WriteLine("coffee is ready");
Egg eggs = FryEggs(2);
Console.WriteLine("eggs are ready");
Bacon bacon = FryBacon(3);
Console.WriteLine("bacon is ready");
Toast toast = ToastBread(2);
ApplyButter(toast);
ApplyJam(toast);
Console.WriteLine("toast is ready");
Juice oj = PourOJ();
Console.WriteLine("oj is ready");
Console.WriteLine("Breakfast is ready!");
}
private static Juice PourOJ()
{
Console.WriteLine("Pouring orange juice");
return new Juice();
}
private static void ApplyJam(Toast toast) =>
Console.WriteLine("Putting jam on the toast");
private static void ApplyButter(Toast toast) =>
Console.WriteLine("Putting butter on the toast");
private static Toast ToastBread(int slices)
{
for (int slice = 0; slice < slices; slice++)
{
Console.WriteLine("Putting a slice of bread in the toaster");
}
Console.WriteLine("Start toasting...");
Task.Delay(3000).Wait();
Console.WriteLine("Remove toast from toaster");
return new Toast();
}
private static Bacon FryBacon(int slices)
{
Console.WriteLine($"putting {slices} slices of bacon in the pan");
Console.WriteLine("cooking first side of bacon...");
Task.Delay(3000).Wait();
for (int slice = 0; slice < slices; slice++)
{
Console.WriteLine("flipping a slice of bacon");
}
Console.WriteLine("cooking the second side of bacon...");
Task.Delay(3000).Wait();
Console.WriteLine("Put bacon on plate");
return new Bacon();
}
private static Egg FryEggs(int howMany)
{
Console.WriteLine("Warming the egg pan...");
Task.Delay(3000).Wait();
Console.WriteLine($"cracking {howMany} eggs");
Console.WriteLine("cooking the eggs ...");
Task.Delay(3000).Wait();
Console.WriteLine("Put eggs on plate");
return new Egg();
}
private static Coffee PourCoffee()
{
Console.WriteLine("Pouring coffee");
return new Coffee();
}
}
}Copyright © 2021 Codeinu
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