public static void FooCallBack(IAsyncResult ar)
{
PrintCurrThreadInfo("FooCallBack()");
AsyncFoo caller = (AsyncFoo)ar.AsyncState;
caller.EndInvoke(ar);
}
static void FooCallBack(IAsyncResult ar)
{
AsyncFoo caller = (AsyncFoo)ar.AsyncState;
int i = caller.EndInvoke(ar);
PrintCurrThreadInfo("FooCallBack() " + i.ToString() + " ");
}
static void Main(string[] args)
{
AsyncFoo foo = (UInt64 size) =>
{
UInt64 f = 1;
for (UInt64 i = 2, tmp; i <= size; i++)
{
try { checked { tmp = f * i; } }
catch (Exception)
{
Console.WriteLine("Overflow, max value returned");
return(f);
}
f *= i;
}
return(f);
};
UInt64 n = 21U;
foo.BeginInvoke(n, (ar) => { Console.WriteLine(foo.EndInvoke(ar)); }, null);
Console.ReadKey();
}