Question

my Question is :
I am trying to work with multi threading TECHNIC
so I used threadPool but what I want is the following
I want to identify the size of the ThreadPool when the program is launching
when I have Data to manage , I will take a thread from The ThreadPool to work with this Item,
as I have read you can define items in threadPool as you want but each thread will Run Automaticly I want to to have control over the thread to determine when the thread should run
If no Data The thread should wait(or stop) when I have a new Data(it’s like a request)
one of the threads will run ….. thanks

Answer 1

When using the ThreadPool you will typically queue a request to the pool with some (optional) input data, which will cause the pool to pick an available thread and run the process. When that is done, the thread is returned to the pool, and will be available for another request. You usually do not need to bother about managing the threads, but can simply queue a work item whenever needed:

DataToWorkWith dataItem = GetDataToWorkWith();
if (dataItem != null)
{
    ThreadPool.QueueUserWorkItem(MyProcessingMethod, dataItem);
}


// somewhere else in the class
private void MyProcessingMethod(object dataItem)
{
    // work with the dataItem; this will run on a threadpool thread, if
    // invoked through the thread pool
}

So, all you would need to do is set up some process figuring out if there is data to work with, queue the requests in the ThreadPool and let it do its job.