c# - Updating a single value from multiple threads -

i have counter - let's call : itemsremaining.

i have dynamic amount of threads, example, let's have 10 threads.....

each thread contain loop, , each iteration in loop unit of work, should update itemsremaining variable on gui thread. private int, or control value.

how can accurately update itemsremaining multiple thread calls? while @ same time not taking big performance knock locking?

you should check methods interlocked class.