Specifies the format of server responses to client polling when the communication is configured for duplex polling.
Assembly: System.ServiceModel.PollingDuplex (in System.ServiceModel.PollingDuplex.dll)
|Specifies the server will return one message every time the client polls for a message and then close the polling connection. This is the default value.|
|Specifies the server keeps the connection open for as long there are messages ready to be sent back to the client and sends as many messages back to the client as it can over a chunked HTTP response.|