Time delay in For loop in c#

Question

how can i use a time delay in a loop after certain rotation? Suppose:

for(int i = 0 ; i<64;i++)
{
........
}

i want 1 sec delay after ea

Answer 1

Try this simpler version without dependency on async or await or TPL.

1. Spawns 50 method calls ,
2. sleeps for 20 secs,
3. checks it 20 or x items are complete.
4. if not sleeps again for 20 secs
5. if yes resumes loop

Code here

 foreach (var item in collection)
            {
                if (cnt < 50)
                {
                    cnt++;
                    DoWork(item);
                }
                else
                {
                    bool stayinLoop = true;
                    while (stayinLoop)
                    {
                        Thread.Sleep(20000);
                        if (cnt < 30)
                        {
                            stayinLoop = false;
                            DoWork(item);
                        }
                    }
                }
            }

Do work in a separate thread, so that sleep doesn't block you, could be a background worker , Begin , End method of webrequest or optionally an async task or Task.Run()

function DoWork()
//Do work in a sep thread.
cnt--;
)