What is instance deactivation in WCF?

Question

I recently came across a term Instance Deactivation.

a) What is it?

b) Why do we need this?

c) In what context would this be useful?

I am looking for a simple answer that can be easily fatal and, if possible, with some pseudo-code.

thank

Answer 1

When the WCF method is called, it is passed to the instance service .

An instance of an instance simply refers to the moment the WCF system has this instance.

In the call forwarding service, instance deactivation will be performed after each method call.

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:.

[OperationBehavior(ReleaseInstanceMode = ReleaseInstanceMode.AfterCall)]
 public void MyMethodWhichTriggersAnAutomaticRelease()
 {
     // ...
 }

, :

public void MyMethodWhichTriggersAManualRelease()
{
     OperationContext.Current.InstanceContext.ReleaseServiceInstance();
}

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Answer 2

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