Code Like A Kid using Small Basic

Along with few of my friends I started learning programming with a language called BASIC.It seems to be a very long long time from now.But that was fun..real & honest.That was one of the few things, like learning to play chess, algebra, geometry.. etc, whenever I remember about it I feel happy.Last week I came across the new version of Small Basic in a blog post, old memories sparked,I downloaded and started playing with it.

WCF & MetaData Exchange – Part 1

Web Services have to expose metadata so that clients can understand how to interact with and make use of that service endpoint.This metadata is generally exchanged in the form Web Services Description Language(WSDL) and XSD schemas describing the bindings,network addresses,messages to be exchanged & also operations and data types.WCF provides a very rich infrastructure and set of APIs to export,publish,retrieve and import service metadata.In this series of posts we will try to examine the important classes involved in this process and the extension hooks.

Fileless Activation of WCF Service in .NET 4.0

Every WCF service needs to have a host process.It can be a windows service,IIS or any other .NET program.This host process will create an instance of the System.ServiceModel.ServiceHost class or any custom class deriving from System.ServiceModel.ServiceHostBase.This host class will manage the service configurations, behaviors, channels and make it accessible to the outside world.When a service is hosted in IIS it behaves a little bit differently.Here we need to create a physical file with .svc extension in the virtual directory of the web server.This file actually points to the service class implementing the ServiceContract and System.ServiceModel.Activation.ServiceHostFactory or a derived class System.ServiceModel.Activation.ServiceHostFactoryBase.When IIS receives a request with that .svc file in URI the corresponding ServiceHostFactory creates an instance of the ServiceHost.The markup contained in a .svc file is shown below: