//Called by SnedOrPostCallback
//raise GetEvenNumbers_Completed
private void CompletedDelegateFunc_Even(object operationState)
{
GetEvenNumberEventArgs arg = operationState as GetEvenNumberEventArgs;
//Checks if GetEvenNumbers_Completed is empty (but then shortend notation)
GetEvenNumbers_Completed?.Invoke(this, arg);
}
//Does the actual work
private static void EvenNumbersWorker(int min, int max, AsyncOperation asyncOp)
{
for (int i = min; i <= max; i++)
{
Thread.Sleep(3000);
if (i % 2 == 0)
{
Console.Write($"{i} is even!\n");
}
}
Console.WriteLine("Done with the evens!");
//SyncRoot gets an object that can be used to
//synchronize acces to the HybridDictionary
lock (tasks.SyncRoot)
{
//UserSuppliedState gets or sets an object used to uniquely
//identify an async operation
tasks.Remove(asyncOp.UserSuppliedState);
}
GetEvenNumberEventArgs arg = new GetEvenNumberEventArgs(null, false, asyncOp.UserSuppliedState);
asyncOp.PostOperationCompleted(onCompletedDelegate_Even, arg);
}
