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Old December 28th, 2006, 08:22 AM
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Default synchronous and asynchronous methods

Hi

Can anyone explain the exact difference between synchronous and asynchronous methods with real examples, not theoretical ones, just consider me as a beginner.

Regards
Mike

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Mike
 
Old December 28th, 2006, 10:52 AM
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Since I am considering you a beginner ill give you some theory first! ;] Synchronous calls are calls that are executed completely and then they return control back to the executing thread where as an Async call is a method call where the executing thread calls the method, the method begins to execute but returns control to the calling thread immeadately so it can go and do other things while the Async method finishes up. Simple huh? ;]

MSDN Reference:
http://msdn.microsoft.com/msdnmag/issues/01/08/Async/

MSDN Blog/Application of AsyncCallback
http://blogs.msdn.com/dphill/articles/43260.aspx

A simple prog:
http://en.csharp-online.net/CSharp_D...s_method_calls

Implementing Async calls can become a pain and, to be honest, I have not run into a situation where I have needed to use an Async method over a Sync method. (I am talking server side code or in windows form programming, not AJAX since I love using that =] )

In anycase I encourage the rest of the forum to contribute to the thread and see what kind of discussion we can get going. =]


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