Make user choosing how many threads he want the program to use

Question

I\'d like to make a program that read each line of a .txt file do something with each line.

I would like to user to be able to choose threads so if he choose for example

Answer 1

Parallel.ForEach will run each loop instance in its own thread, and will also allow you to set the MaxDegreeOfParallelism (# of threads) to whatever you want.

        Parallel.ForEach(lines, new ParallelOptions{ MaxDegreeOfParallelism = 10 }, line =>
        {
            // do stuff with line
        });