queue - How to set max number of threads running concurrently using ThreadPool in .NET -

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i need execute fixed number of threads,say 5, in parallel, , en-queue remaining threads. here piece of code tried.

threadpool.setmaxthreads(5, 0);  threadpool.queueuserworkitem(new waitcallback(threadproc), task1);             thread.sleep(1000);//'threadproc' callback function

now, when i'm trying run, 7 threads in parallel running threads simultaneously instead of running 5 thread , queuing next 2 threads. how achieve this?

if can use parallel for/foreach have paralleloptions.maxdegreeofparallelism limit number of concurrent operations.


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