private void start_Click(object sender, RoutedEventArgs e)
{
textBlock1.Text = "";
label1.Content = "Milliseconds: ";
var watch = Stopwatch.StartNew();
List <Task> tasks = new List <Task>();
for (int i = 2; i < 20; i++)
{
int j = i;
var t = Task.Factory.StartNew(() =>
{
int result = YourFunctiopn(j);
this.Dispatcher.BeginInvoke(new Action(() =>
cs.Add(result))
, null);
});
tasks.Add(t);
}
Task.Factory.ContinueWhenAll(tasks.ToArray(),
result =>
{
var time = watch.ElapsedMilliseconds;
this.Dispatcher.BeginInvoke(new Action(() =>
label1.Content += time.ToString()));
});
}