When data is transmitted between a sender and receiver, a type needs to be found at runtime for the data arriving at the receiver. The type is looked for by searching all of the available known types. These known types are specified via the [KnownType] attribute. The [KnownType] attribute provides… Continue reading
The [DataMember] attribute is applied to all members of the data contract type to identify it as a data member. Specifying this attribute identifies that member as member whose data will be serialized by the DataContractSerializer. Just like the [DataContract] attribute, the [DataMember] attribute has a number of parameters to… Continue reading
Data contracts are defined declaratively just like service contracts and operation contracts. To define a data contract, you simply decorate a class or enumeration with the [DataContract] attribute. [DataContract] public class BuyStock { … } I should back up and say that there is one difference between defining a service… Continue reading
Simply, a data contract describes the data that is to be exchanged. That you know this is the one of the principles of Service-Oriented Architecture is policy-based compatibility. That section gave an example of a couple of strangers meeting on the street and wanting to start up a discussion. However,… Continue reading
The [OperationContract] attribute includes the method as part of the service contract and identifies the method as a service operation. A method marked as an operation contract is exposed to the public. Methods not marked with this attribute are not exposed externally. [OperationContract] attributes are also mapped to an equivalent… Continue reading
In Windows Communication Foundation there are three types of services, ranging from simple to somewhat complex. The three types of services are as follows: Typed Untyped Typed message Typed A typed service is the simplest of services, and is very similar to the methods in a class, in that both… Continue reading
The [ServiceContract] attribute identifies an interface or class as a service contract. This attribute explicitly defines the interface as a CLR interface and enables it to carry out WCF contract operations, with each [ServiceContract] attribute being mapped to an equivalent WDL portType declaration. The following list contains the parameters available… Continue reading
A service contract defines the operations, or methods, that are available on the service endpoint and is exposed to the outside world. It also defines the basic message exchange patterns, such as whether the message behaves in a request/reply, one-way, or duplex behavior. A service contract exposes specific information to… Continue reading
Windows Communication Foundation supports a number of different methods, or approaches, of programming, each with its pros and cons. The great thing about WCF is that there is always more than one way to accomplish something. For example, you can specify an endpoint in code or in a configuration file…. Continue reading
The MsmqIntegrationBinding differs from the NetMsmqBinding in that the MsmqIntegrationBinding provides direct integration between Windows Communication Foundation and MSMQ. With NetMsmqBinding, MSMQ is the transport and communicates with other WCF applications, whereas with MsmqIntegrationBinding your WCF application communicates directly with an MSMQ deployment. The benefit here is that your MSMQ… Continue reading