I’ve just become aware of this MoreLINQ project containing some neat IEnumerable extensions authored by the inimitable Jon Skeet. I particularly like the look of DistinctBy – that’s gotta be a lot easier than passing custom instances of IEqualityComparer into Distinct(). Fun fact – I used to work with someone who went to school with Jon Skeet! True Story!

A couple of weeks ago, early one morning, my friend and fellow coder Scott asked a curious question: “Do you think that programming computers for a living gives you a negative outlook on life?” Now, Scott is unfortunately responsible for administering occasional TLC to a codebase that I cut as long ago as 2004, so I assumed he was referring to this and was about to raise some complaints about my hand-rolled query object criteria framework or other coding horror. I steeled myself to defend my work as he continued to explain: ...

Oh, the irony!

@Jez tweeted last night: @ianfnelson admit it: you use Castle Windsor primarily to highlight and lampoon Google’s poor selection of adwords?! — 𝚂𝚑𝚘𝚘𝚝𝚒𝚗𝚐 𝚂𝚌𝚒𝚕𝚕𝚢 (@shootingscilly) October 26, 2009 Funny, but not true. I am enamoured with the Castle Windsor project because its power makes it fairly simple for me to develop loosely-coupled systems which are easily maintained and tested. The wide range of Facilities and Contrib projects also integrate nicely with the other parts of my current development stack (NHibernate, WCF, WF, log4net). ...

The shiny new system which I’ve recently been developing makes heavy use of the Chain of Responsibility pattern, and as such a number of service classes take an array of objects in the constructor: I’m using Castle Windsor for dependency management, so I’ve been fluently registering all instances of ILeadAllocator: Easy, right? And yet at runtime Windsor surprised me by throwing this exception in my face: C M K – a a e s r y l t s s e l h a e a ( d . l c A M l o l i s m l c . p o r L o c o e n a K a e t e d n o r s t r n . s s e A l p w w . p i h H l t i a i h c n c h d a s l t p w e i e a r o c s s n i . S f n H e i o a r c t n v d i k r l c e e e e y g r . s i E L ) s x e t c a e e d r p A e t l d i l . o o n c : a t C i a o n n ’ S t e r c v r i e c a e t e i s c o w m a p i o t n i e n n g t f & o # r 8 2 t 1 h 6 e ; M f a o r l s l h o a w l i l n s g . L d e e a p d e s n . d A e p n p c l i i e c s a : t i o n S e r v i c e . L e a d A l l o c a t i o n S e r v i c e ’ a s i t h a s d e p e n d e n c i e s t o b e s a t i s f i e d . Huh?! What gives? Well, a little Googling revealed this post from Castle founder Hamilton Verissimo explaining that by default the Castle MicroKernel expects me to define what should be included in the array. But he goes on to explain that the behaviour I desire can be achieved by registering a custom subresolver with the microkernel. That subresolver has since been included in the Castle Windsor distro, so in actual fact all I needed to do was add the following line of code when configuring my container: ...

Benny George, our precocious two-year-old, is quite the fan of Mister Maker, and enjoys spending time doing arty crafty stuff with his mum. Now, the great thing about the BBC is that they tend to suggest projects which can be created using bits and bobs that you’re likely to have around the home – old cereal boxes and the like. But occasionally some specialist resources have to be procured in the name of Ben’s art, and so it was that Joce today spent £1.99 on a pack of the “googly eyes” so beloved of Maker. ...

I always knew my lifestyle choices would come back to bite me some day… I’ve been making heavy use of the Castle Windsor container to handle dependency and configuration management in the shiny new system that I’m currently developing. For the most part it’s been an absolute blast, allowing me to easily create a loosely-coupled system architecture and focus my efforts on what the system should be achieving for the client, rather than worrying about how it all hangs together. ...

Improvements to the Execution Plan UI in SQL Server Management Studio 2008 sure do make it a doddle to improve query execution time. A client just reported that a particular stored procedure kept timing out. Viewing the Estimated Execution Plan for this query displayed a nice green message advising of a potentially missing index which could improve performance by >95%: Right-clicking and selecting “Missing Index Details” then brings up a new query window containing the index creation DDL (I had changed the index name by the time I grabbed this capture): ...

If you’re in the Leeds area next Wednesday, why not come along to this Agile Yorkshire session? 10th June – Gojko Adzic: Slim, The Future Of FitNesse Details This talk will introduce Slim, the most important upgrade to FitNesse in years. Slim is the new test runner which promises to bring platform interoperability, easier integration, a much simpler programming model and lots of small helpers that will allow us to write and maintain executable specifications and acceptance tests easier. This is a session for .NET and Java developers. Some prior exposure to FitNesse and FIT would be beneficial, but not required. ...

Well, for the record, I passed MS exam 70-553 yesterday on my second attempt, which makes me a Microsoft Certified Professional Developer – Enterprise Application Developer: And I also acquired a few new MCTS certifications as a happy by-product: My full transcript, including “legacy” certifications, is here. Phew! I think that the time has now come for me to take a bit of a break from the certification circus. They are a nice-to-have, but the opportunity cost is too high – there are many other ways in which I can spend what little spare time I have to better develop my skills. ...

I promised you some photos of my new office a while back, didn’t I? OK, here you go…

The inimitable Ayende Rahien is close to releasing version 1.0 of his NHibernate Profiler tool, and it really is shaping up to be a rather lovely little addition to my developer toolbox. In much the same way that we can use SQL Server Profiler to monitor database activity, and ANTS Profiler to monitor the performance and memory usage of .NET applications, NHProf profiles the activity of the data access layer (NHibernate), and even goes as far as providing helpful hints for potential improvements. ...

There are many things I love about Team Foundation Server, but the supplied diff/merge tool is not one of them. It is – how can I put this? – somewhat basic. Indeed, I’ve heard tell of people going out of their way to avoid merges purely because they find the process so clunky. Here’s the good news – you can easily configure TFS to use a different, third-party, diff/merge tool, perhaps the one you’ve grown to know and love over many years of happy software development using other SCM products. Maybe you like WinMerge, or love TortoiseMerge. Perhaps you’re like my friend John and swear by SourceGear DiffMerge. Or maybe, like me, you’re a Beyond Compare fanboy. No problem, they can all be used by TFS. Here’s how: ...

If I can get a pass out from helping to look after the burgeoning Nelson family for an evening, I’ll be going along to this Agile Yorkshire session next Wednesday. May 13th – Ralph Williams: Exploratory Testing Details In this session, Ralph will provide an overview of some techniques that bring Agility into the world of testing. (The world of testing is a strange place: regarded by most people as a nice place to visit but you wouldn’t want to live there, it is an unmapped wilderness where the waterfall methodology still roams unfettered.) ...

It gives me the utmost pleasure to announce the birth of Miss Isla Grace Nelson. Following a ludicrously speedy labour, Isla entered the world in an ambulance on the eastbound A64 near Bilbrough services on Tuesday 28th April at 18:09 local time (see this time in your time zone). Her birth mass was 3.750 kilograms (8 pounds 4 ounces), and length was 50 centimetres (20 inches). Now, a few people have asked me to blog more details about Isla’s birth, notably the events that led to her being born in an ambulance and not, as had been planned, at York District Hospital like her big brother. So, here goes. Inevitably, this is all from my perspective, though as Jocelyn’s side of things seemed to consist mostly of agonized screams and wailings, perhaps those aren’t the kind of details you want to hear anyway. ...