Krzysztof Cwalina
Designing Reusable Frameworks
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Extensible Framework Design Studio Released
This summer we had a high school intern, Nick Moloney, who worked on incorporating MEF into FDS . The fruits of his labor are now on code gallery. You can download the extensible FDS here . Congratulations to Nick! The current release has just a few extensibility
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API Design Myth: Exceptions are for "Exceptional Errors"
I was updating FDG section on exceptions. I added one anntation that I thought I would post here as well: KRZYSZTOF CWALINA One of the biggest misconceptions about exceptions is that they are for “exceptional conditions.” The reality is that they are
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Nullable<T> Usage Guidelines
These guidelines were just added as part of an update to the Framework Design Guidelines book ( upcomming 2nd edition ). Hope you find them useful. Nullable<T> is a simple type added to the .NET Framework 2.0. The type was designed to be able to
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Framework Design Guidelines Digest v2
Almost 4 years ago, I blogged about Framework Design Guidelines Digest . At that time, my blog engine did not support attaching files and I did not have a convenient online storage to put the document on, and so I asked people to email me if they want
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Framework Design Studio Released
When I was coming back from Mix 2007, I was bored on the plane and so started to write a dev tool. What a geeky thing to do on a plane. :-) The tool allows comparing two versions of an assembly to identify API differences: API additions and removals.
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Simulated Covariance for .NET Generics
I just wrote this pattern, but I am not sure if I should add it officially to the Framework Design Guidelines. It seems like a bit of a corner case scenario, though I do get questions about it from time to time. Anyway, let me know what you think. Different
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Job Openings on the .NET Framework Core Team
We have been incubating ideas about building a simple extensibility framework for some time. Now, as plans for the next version of the .NET Framework crystallize a bit more, we decided to productize the project. As a result, we have opened a job position
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Video Recording of "Framework Engineering: Architecting, Designing, and Developing Reusable Libraries"
I just received a video recording of a talk I did at the last TechEd. You can find the abstract below, and the WMV file can be downloaded from here . Hope you find it useful. [UPDATE: I attched the slides in xps format. The ppt file is 10x larger] Framework
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Framework Design Guidelines 2nd Edition
My blog was relatively silent for several weeks. First, I was traveling to Europe for the TechEd, then was busy at work, then the holiday break. It's time to go back to more regular posting. I will start with an announcement (or at least a more formal
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What Do Swimmers Have to Say About Framework Design?
I am starting to feel pressure to finish up slides for my presentation at the upcoming TechEd in Barcelona. I will be talking about framework architecture and design. Here is the abstract I took from the conference’s site : WIN304 Framework Engineering:
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China Trip
Sorry for not blogging for such a long time. First I was on a combined business/vacations trip to China and when I came back, I got involved in some intensive planning for the future releases of the platform. I will try to post something about software
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FxCop Designers Honored with the Chairman's Award
Last week, during the annual Engineering Excellence week, several Microsoft engineers and managers involved in development of engineering tools and practices were presented with Engineering Excellence Awards. In addition, the principal designers of three
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Generic Methods as Casts
Somebody just asked me which of the following API design alternatives is better. They both do what we could call “casting.” // Generic Method “Cast” var foo = someInstance.SomeMethod<IFoo>(); // Simple Cast var foo = (IFoo) someInstance.SomeMethod();
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Framework design lecture avaliable for download
I have good news for all who asked about an off line version of the API design lecture I blogged about a few weeks ago . After literally a hundred emails and comments on the blog (thanks for pushing me to get this done), weeks of trying to get this setup,
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Nullable<bool> usage guideline
I am starting to work on some updates to the framework design guidelines related to new framework and language features added in .NET 2.0, 3.0, and 3.5. One of such additions are the nullable types (Nullable<T>). Coincidentally, somebody asked me
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