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DEFINITION: Different between Delegate.BeginInvoke and Thread.Start()

Posted on 2004-08-28
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Last Modified: 2008-03-03
If I have a method of type

public void myMethod()
{

}

And I create a delegate void NewDelegate(void)

What is the actual difference between the following calls and how they are handled by .NET and the OS

NewDelegate del = NewDelegate(myMethod);
del.BeginInvoke(null, null);

and

Thread t = new Thread(new ThreadStart(myMethod));
t.Start();

I know the delegate will use a thread from the thread pool, but will the thread t as well?  What is the actual effect of one versus the other.
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Question by:jjacksn
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shaival_trivedi earned 250 total points
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by:gregoryyoung
gregoryyoung earned 250 total points
ID: 11921282
it will create a new thread delegate.begininvoke will not it will be queued into the thread pool.

however there are some caveats within the CLR that make the thread not necesarily exclusively owned.

If you look at the thread class you will read "Note   An operating-system ThreadId has no fixed relationship to a managed thread, because an unmanaged host can control the relationship between managed and unmanaged threads. Specifically, a sophisticated host can use the CLR Hosting API to schedule many managed threads against the same operating system thread, or to move a managed thread between different operating system threads." this pretty much says it all.
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