Asynchronous Pattern in Windows Communication Foundation: ASP Alliance

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Asynchronous Pattern in Windows Communication Foundation

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by Keyvan Nayyeri
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Configuration

There is nothing special for asynchronous pattern implementation on configuration side for services or clients because nothing changes for message formats and other intermediary stuff when you use asynchronous pattern.

Service can implement its methods synchronously, but client can get access to them asynchronously. In the opposite direction, clients can implement some methods synchronously but the service can implement them asynchronously.

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User Comments

Title: Where's the Client?
Name: Adam
Date: 6/2/2009 4:09:23 PM
Comment:
There is no call in the client side that makes use of the callback routine to discover when the operation is complete. It looks like you did a ton of work to create an asynchronous way to call the Add function, and then the client totally skips it and calls it synchrously. Am I missing something?

Title: Thanx
Name: MC
Date: 2/21/2008 4:02:44 PM
Comment:
Very hepful !

Title: Event-Based Asynchronous Programming
Name: Nirmala
Date: 11/23/2007 7:47:55 AM
Comment:
Why Event-Based Asynchronous Programming is not supported in WCF proxy? Is there any work around to fill the gap?

Title: InvokeAsync in WCF
Name: Nirmala
Date: 11/23/2007 7:33:17 AM
Comment:
In WebService proxy, we have InvokeAsync (of SoapHttpClientProtocol).
But, WCF proxy is missing the InvokeAsync.

Will VS 2008/3.5 support InvokeAsync?

Title: Asynchronous Pattern in WCF
Name: Nirmala Patthi
Date: 11/19/2007 6:02:17 AM
Comment:
Hi Keyvan Nayyeri,

Thanks for your article. Do you have any idea how to implement Async2 patten in WCF? In the dotnet WebServices, SoapHttpClientProtocol has InvokeAsync that implements Async2 pattern (that is newly introduced in asp.net 2.0 framework).
When we create a WebService proxy, it will have the InvokeAsync implemented by default.
However, when we create a WCF proxy, InvokeAsync is not generated, rather we will have BeginInvoke, EndInvoke though.
I am not sure about if dotnet 3.5 framework, if WCF will come with Async2 pattern.
Can you please comment on this?

Title: THX
Name: Amir Sameni
Date: 7/15/2007 3:21:47 AM
Comment:
thanks for sharing

Title: Thanks
Name: Keyvan Nayyeri
Date: 7/13/2007 3:19:21 AM
Comment:
Thank you Darren :-)

Title: Nice!
Name: Darren Neimke
Date: 7/13/2007 3:04:25 AM
Comment:
Nice stuff Keyvan... thanks for sharing :-)

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