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Tuesday, June 05, 2007 8:00 AM

Live from TechEd Day 2

I gave a chalk talk on channel development in the afternoon yesterday. I did a huge experiment for the second-half of the talk, which was to write a custom channel from scratch for the audience. That's the kind of theater that you can pull off in a chalk
Posted by Nicholas Allen | 1 Comments
Wednesday, April 04, 2007 5:00 AM

Optional Interfaces on Binding Elements

In the past I've talked a lot about the absolute minimum you need to do to write a working channel. However, what about the people that want all of the optional bells and whistles that can go along with channel development? There are several interfaces
Posted by Nicholas Allen | 2 Comments
Wednesday, March 28, 2007 5:00 AM

Writing Channel Manager Essentials

Once you've obtained a channel manager from the binding element, you have the first object that is usable for network communication. Although the two kinds of channel managers, channel factories and channel listeners, share many of the same methods, the
Posted by Nicholas Allen | 1 Comments
Tuesday, March 27, 2007 5:00 AM

Writing Binding Element Essentials

We're back to the channel development series for another pair of days. When I left off, I promised to talk a bit about writing binding elements and channel managers. Today's article is about writing binding elements and tomorrow's article is about writing
Posted by Nicholas Allen | 1 Comments
Wednesday, March 21, 2007 5:00 AM

Channel Managers

Last time, we left off the channel construction process at the end of the design stage. During the design stage, everything is still in an unmolded and configurable state. At the end of the design stage, the construction process flips from a configuration
Posted by Nicholas Allen | 1 Comments
Monday, March 19, 2007 5:00 AM

Channel Bindings

We're back to the channel development tour for another pair of articles. Today's article is the first of four in this segment on channel construction. The first half of the segment is background and the second half of the segment talks about code. In
Posted by Nicholas Allen | 3 Comments
Tuesday, March 13, 2007 5:00 AM

Channel Writing Checklist (Optional)

Let's fill in some of the spaces around yesterday's checklist with a list of additional features for a custom channel. Nothing that's been added to this list is required to actually send or receive messages. By doing the things listed here, you can enable
Posted by Nicholas Allen | 1 Comments
Monday, March 12, 2007 5:00 AM

Channel Writing Checklist (Required)

This pair of articles marks the checkpoint between the "big picture" introductory segments and the segments where we actually start getting down into the code. The transition is going to be gradual so there's still some philosophy left, particular around
Posted by Nicholas Allen | 1 Comments
Thursday, March 08, 2007 5:00 AM

Channel Shapes

I was looking through the archives the other day and found that the original article on channel shapes is actually still accurate despite having come out a year ago. It's interesting to step forward in time and watch as things become more and more like
Posted by Nicholas Allen | 3 Comments
Wednesday, March 07, 2007 5:00 AM

Message Flow Interception Points

We've been looking at the flow of messages ( Part 1 and Part 2 ), but have never stopped along the way to look at the extensibility points where you can plug in your own code. Being a highly-extensible framework, WCF has piles and piles of these extensibility
Posted by Nicholas Allen | 4 Comments
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Monday, March 05, 2007 5:00 AM

Flow of Messages, Part 2

Continuing from last time, we were looking at the flow of a message during a service call. We left off at the point where the service client had just dropped a message off to the network. Today, we're going to follow that message up through the completion
Posted by Nicholas Allen | 2 Comments
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Friday, March 02, 2007 5:00 AM

Flow of Messages, Part 1

In the channel development series so far, we've just been looking at channels. I've already mentioned that you should consider using other extensibility points instead of channels when that's cost-effective. However, it has so far been left a mystery
Posted by Nicholas Allen | 2 Comments
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Monday, February 26, 2007 5:00 AM

Channels Illustrated

In the channel development series last week, we looked at the characteristics of channels (protocol channels, transport channels, and why you would write a channel at all). Let's use a specific example to illustrate those points. Although the protocol
Posted by Nicholas Allen | 1 Comments
Thursday, February 22, 2007 5:00 AM

Transport Channels

Let's shift gears for a bit and talk about transport channels now as opposed to protocol channels. Everything that was said yesterday for channel stacks is still true when we add transport channels to the picture. Everything that was said yesterday for
Posted by Nicholas Allen | 2 Comments
Wednesday, February 21, 2007 5:00 AM

Protocol Channels

There are only two kinds of channels in the world. Today we'll talk about protocol channels. Tomorrow we'll talk about transport channels. Transport channels move data to and from the network Protocol channels move data between the application and transport
Posted by Nicholas Allen | 5 Comments
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