In configuration there's a DataContractSerializer behavior that I can add to my service, but the class it uses is internal. How do I get the same behavior programmatically? The DataContractSerializer behavior is a shortcut for setting the MaxItemsInObjectGraph...

I've had a few people ask whether the WCF subset in Silverlight supports message-level security. The answer currently is not very much. The security support is limited to basically the facilities that you'd expect to have for any other browser based application...

I covered earlier the WCF and WF PDC talks that the team is doing, but there are many other groups coming to PDC to talk about web services. Here is a sample of ten of those other talks that I think WCF developers may find interesting. Developing REST...

How can I found out what CLR type a particular XML schema definition will map to when using data contracts? Ask the type system what type it thinks the schema will map to. static string ClrTypeForXmlType(XmlQualifiedName xmlType) { return...

Application auto start is the ability for an application to be automatically started up before receiving any requests. In addition to priming the application for the first request, application auto start is also a way to have applications that start automatically...

The Windows SDK samples for WCF and WF are now available updated for .Net 4 Beta 2. These are only the samples that are new or changed in .Net 4. If you want the complete set of existing samples as well you'll need to pick those up from the platform SDK...

Although available for download by subscribers the last few days, the second beta release of .Net 4 is now available to everyone. You will see a number of new WCF features changed or moved around since the first beta release, but what you see now is almost...

The training kit of materials for Visual Studio 2010 and .Net 4 has now been updated with the latest for beta 2. The contents of the training kit include presentations, hands on labs, and demos related to the new features in the release. Here's some of...

Last week the AJAX script files included for ASP.NET MVC applications were added to the AJAX content delivery network . The content delivery network is a free service that provides caching support for some of Microsoft's AJAX libraries. As a developer...

Why is setting the Order property on data members recommended when adding fields in a new version of the contract? The data contract versioning best practices recommend taking three steps when adding fields in a new version of a contract. The...

There are four more weeks between now and the start of PDC the week of November 16th. Registration can be done through the main PDC site. The details of the sessions are now almost all completely published and there are six sessions on tap covering WCF...

Why do only some of the bindings allow setting a MaxBufferSize? The maximum buffer size and the maximum received message size are in many ways linked together. If the message is being transferred in a single buffer, then it only makes sense for...

Two and a half years ago I put together an initial list of case studies involving WCF from the Microsoft case study site. Yesterday I covered the year past the initial list and this time I'll go one year farther. Today's list covers roughly a year starting...

Two and a half years ago I put together an initial list of case studies involving WCF from the Microsoft case study site. I thought I'd give an update to gather together a list of case studies published since then. Today's list covers roughly a year stretching...

I've updated the WCF developer technology page with some of the ASP.NET MVC articles I've posted recently and also added another entry: .Net RIA Services. RIA Services are an application design pattern that live between ASP.NET and Silverlight in a...

The documentation for a published product periodically receives corrections and bug fixes in a refresh update that publishes many of the changes at once. On occasion there may even be new content added that was produced since the last release. Silverlight...

What is the System.ServiceModel.Channels.NullMessage used for? The Message class is a central abstraction for representing communication between two endpoints. There's often interesting information associated with a message, such as the message delivery...

Several new PDC sessions were published recently including one session that I'll be delivering. Application Server Extensibility with Microsoft Project Code Name “Dublin” and Microsoft ASP.NET 4 by Nicholas Allen ASP.NET 4 and “Dublin”...

For the last part in the binary encoding series I'll cover how the use of the string table changes when the encoder is used in a sessionful manner. Here now are all of the past entries in the series: Binary Encoding, Part 1 Binary Encoding, Part...

A second preview release of ASP.NET MVC 2 has been released, adding new support for extending client-side validation, metadata annotations, and model validation. I'll be updating the web service technology page later in the week to cover a new set of...

Christian Weyer and Buddhike de Silva have an article in this month's MSDN magazine covering contract-first development with WCF . They go over modeling messages and services through schema and then applying that to build a web service with WCF. They...

I've gone ahead and put the message in the exercise in a small test program to demonstrate how the server would handle it. To help you out I've reformatted the input to make the record boundaries clear although the server obviously wouldn't take notice...