Gets a value that indicates whether an operation returns a reply message.
Assembly: System.ServiceModel (in System.ServiceModel.dll)
Use the property to indicate that an operation does not return a reply message. This type of operation is useful for notifications or event-style communication, especially in two-way communication.
If the property is set to false (the default), even methods that return void result in a reply message. In this case, the infrastructure creates and sends an empty message to indicate to the caller that the method has returned.
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.