IInstanceContextProvider.GetExistingInstanceContext Method
Definition
Important
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Called when a new message is received.
public:
System::ServiceModel::InstanceContext ^ GetExistingInstanceContext(System::ServiceModel::Channels::Message ^ message, System::ServiceModel::IContextChannel ^ channel);public System.ServiceModel.InstanceContext GetExistingInstanceContext (System.ServiceModel.Channels.Message message, System.ServiceModel.IContextChannel channel);abstract member GetExistingInstanceContext : System.ServiceModel.Channels.Message * System.ServiceModel.IContextChannel -> System.ServiceModel.InstanceContextPublic Function GetExistingInstanceContext (message As Message, channel As IContextChannel) As InstanceContextParameters
- message
- Message
The incoming message.
- channel
- IContextChannel
The channel that received the message.
Returns
The InstanceContext object that is used to process the message; return null to instruct WCF to create a new InstanceContext object.
Remarks
The GetExistingInstanceContext method is called when a message is received. Return the InstanceContext object that you want to process the message, or null. In the case of null, WCF creates a new InstanceContext object for the message and then calls the InitializeInstanceContext method.
If you return null, the new InstanceContext object goes through the throttling system and increments the count of ServiceThrottle.MaxConcurrentInstances.
