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Last night I presented to the London Connected Systems User Group on the subject of Windows Identity Foundation (WIF). The LCSUG community is focussed around building and integrating services. One architectural concern that has been widely ignored in service oriented architecture is identity and access control. Web based identity protocols such ...

The remote server returned an unexpected response: (400) Bad Request. Server stack trace:    at System.ServiceModel.Channels.HttpChannelUtilities.ValidateRequestReplyResponse(HttpWebRequest request, HttpWebResponse response, HttpChannelFactory factory, WebException responseException)    at ...

This is a blog I've been meaning to write for over a year now, but have just not had the time. Its as much a ''note to self'' as a blog for external consumption. WCF provides the ability to generate a client proxy that communicates with a service, such as a SOAP service conforming to basic profile. Generating a proxy can be done by either using ...

I never really got that excited about Silverlight 1.0, mainly because whilst it had a great core graphics engine and did video streaming very well, it's feature set was just not rich enough to make it really useful to applications that demanded deep functionality. One of the features that was clearly lacking was connectivity; you could not ...

I'm back from Holiday and getting going into the new year. For those of you .Net developers considering Microsoft certification exams, the following may be of interest: Exam 70-502 Microsoft .NET Framework 3.5 - Windows Presentation Foundation. Expected to be released in February 2008. http://www.microsoft.com/learning/exams/70-502.mspx Exam ...

WCF System.Net.WebException: The underlying connection was closed: The connection was closed unexpectedlyIf you get the above error when trying to return large numbers of items in a List<T> from a WCF service, then ensure you have set the following behaviour for the dataContractSerializer in both your client and service configuration ...

Overview of WCF architecture Figure 1 illustrates the generic architecture WCF employs for all services. Figure 1 - General WCF Architecture The outer service represents the AppDomain of the service. A WCF service consists of contracts (data, fault and service contracts), a service instance (implementation) which is the implementation of a ...

I have been looking at the training materials for exam 70-529: Distributed Application Development with .net 2.0. However Windows Communication Foundation (WCF) in .net 3.0 is in use now, I wondered if a replacement exam on this is forthcoming. The answer seems to be "yes". This post indicates that a WFC Qualification was in the ...

IntroductionLast June, my collegue Howard van Rooijen blogged on the need for continuous education in the .Net development world.This blog points out one very true fact in the Microsoft development space right now; technologies are diverging and becoming more and more specialized to meet specific needs. As Howard points out, this means as ...