im new to C# and i was trying to figure out async and await . for practice i was trying to start method 1 in which method 2 is called twice . method 2 takes a value and increases it by 1 each 200 ms . instead of running method 2 the program ends after the first line of method 1 .
static void Main(string[] args)
{
Method1();
}
static int Method2(int x)
{
for (int i = 0; i < 10; i++)
{
x += 1;
Console.WriteLine(x);
Thread.Sleep(200);
}
Console.WriteLine("final" + " " + x + " " + Thread.CurrentThread.ManagedThreadId);
return x;
}
static async Task Method1()
{
Console.WriteLine("1 running");
int result1 = await Task.Run(() => Method2(0));
int result2 = await Task.Run(() => Method2(result1));
Thread.Sleep(1000);
Console.WriteLine("result " + result2 * 2);
}
what am i doing wrong here ?
>Solution :
When calling Method() you aren’t waiting on it. It returns a task object that is not acted upon, and then Main() dutifully returns, which ends the program.
You can do this in Main():
public static void Main() {
Method1().GetAwaiter().GetResult();
}
Or use async Main() instead:
public static async Task Main() {
await Method1();
}