R6034 - An application has made an attempt to load the C runtime library incorrectly

[This was originally posted at http://timstall.dotnetdevelopersjournal.com/r6034__an_application_has_made_an_attempt_to_load_the_c_run.htm]

A coworker recently got this error when trying to open a web application project within Visual Studio 2008:

Runtime Error!

Program: C:\Prog...

R6034

An application has made an attempt to load the C runtime library incorrectly. Please contact the application's support team for more information.

Note that in this case, (1) Visual Studio opened just fine, (2) the problem was in merely loading a web project, and (3) nothing was even being compiled yet.

It turned out the problem was likely from a corrupt uninstall of the .Net 3.5 SP1. By re-installing the SP, things began to work again.

NOTE: .Net 3.5 SP1 has a potential error with the web dlls, so you may need to make some tweaks to the GAC.

Silverlight Tour in Chicago

[This was originally posted at http://timstall.dotnetdevelopersjournal.com/silverlight_tour_in_chicago.htm]

For those interested in Silverlight, there is a Silverlight tour that will be offering classes in Chicago. You can find more details at: http://silverlight-tour.com/. I'm told that this is the first training that is teaching Silverlight 3. While this is not a free event, it may be well worth the cost if you're a Silverlight fan.

Hat tip from Shawn Wildermuth.

Is unit testing a second class citizen?

[This was originally posted at http://timstall.dotnetdevelopersjournal.com/is_unit_testing_a_second_class_citizen.htm]

Especially with the successful track record of unit tests, no project wants to be caught rejecting the notion of "unit testing your software". However, for many projects, unit testing seems like a second-class citizen. Sure, people speak the buzzwords, but they don't actually believe it, hence they diminish unit tests as some secondary thing unworthy of time or resources, as opposed to "real code".

1. Will developers actually spend time writing unit tests while they develop a feature (not just as an afterthought)?
2. Will developers (including architects) design their code such that it's conducive to unit testing?
3. Will a broken test get a manager's attention, or is it just some nuance to be worked around?
4. When a business logic bug is found, is there enough of an infrastructure such that you could write a unit test to catch it (the test initially fails because the code is broken, then passes once you fix the bug)?
5. Will developers invest mental energy in learning to write better tests, such as reading blogs or books on testing, or experimenting with better testing techniques?
6. Will developers write unit tests even when no-one's looking, or is it just some "tax" to appease an architect or manager?
7. Will management support the hardware for it, like having an external build server with the right software (while NUnit is free, MSTest still requires a VS license)?
8. Will a broken unit test cause the build to fail?
9. During code reviews, will other devs review your unit tests, similar to how a QA person reviews functionality?
10. Do your amount of unit tests increase as the rest of the project grows?
11. Is the team concerned with code coverage?

You know management is going to ask for it

[This was originally posted at http://timstall.dotnetdevelopersjournal.com/you_know_management_is_going_to_ask_for_it.htm]

Time is precious, so it's natural to always be on the lookout for short-cuts. But certain short-cuts end up being anything but short, costing you far more later than if they had just been done up front. In other words, even if management promises "don't waste your time on it", you know that they'll come back to you and ask for it:

• Cross-browser web applications - they say "just worry about IE for now", only to want FireFox a year later.
• Refactoring your navigation - they're going to want a page referenced from multiple places.
• Scalability - They might say "just get it done now", but they'll want it to scale up.
• Changing any environmental value - they may let you assume some environmental value, like the hard-drive disk volume or some url, but you know it's going to eventually change.
• Turning static data into dynamic data - any hard-coded data (like entering a customer service phone number) is going to change.
• Changing relationships from one to many - you want to pass in a single scalar, but really the business rules require an array (or a one-to-many database relationship).
• Allowing client customizations and overrides -
• Some way of doing online help documentation -

I lose track of how many changes like these happen. It's best to just always be prepared for it. Even if the manager (or client) signs of on some waterfall doc, it won't matter, because without the change they'll feel "cheated" and resent the developer.

The kicker is that with the right starting framework, tools, and code-smell, many some of these changes take roughly the same amount of time to "do right" as to hack them (like cross-browser JS or using app.config values for literals like paths), especially when it comes to total cost of ownership.

BOOK: Framework Design Guidelines

[This was originally posted at http://timstall.dotnetdevelopersjournal.com/book_framework_design_guidelines.htm]

A while back I finished reading Framework Design Guidelines by Krzysztof Cwalina and Brad Abrams. It's been ranked well on Amazon, and I can see why. Besides the general guidance one expects from a book like this, it had two other things that I really liked: (1) all the commentary from top .Net Architects, and (2) it provided a behind-the-scenes history of how the .Net Framework and Base Class Library came to be. Especially for practitioners who have made .Net their life (like myself), these are good things to see. I remember back when I started with .Net 1.0 in 2002, and how it's progressed from there to 1.1 and 2.0 and 3.0 and 3.5 and now "3.6" (i.e. .Net 3.5 SP1), so the book has been a good stroll down memory lane.

I'm impressed by the sheer volume of practical examples - this book is not some ivory tower theory pamphlet, but rather written from the first-hand experiences in the trenches.

I think the book got off to a strong start with "What makes a framework easy to experiment with?" As the brunt of it is a giant list of "do's" and "don'ts", it can get a little tedious at time, but it's still a very good read. I think reading an authoritative book like this also gives you a little more confidence that there's not something obvious that you're missing, as well as subtly increasing your code-smell.

Chicago Code Camp on Saturday, May 30th

[This was originally posted at http://timstall.dotnetdevelopersjournal.com/chicago_code_camp_on_saturday_may_30th.htm]

"The ChicagoAlt.Net group and Lake County .Net UG would like to officially announce the Chicago Code Camp which is slated to come to College of Lake County on May 30th..." (hat tip: http://devlicio.us/blogs/derik_whittaker/archive/2009/03/05/chicago-code-camp-coming-may-30th.aspx)

How to integrate Generated code into your application

[This was originally posted at http://timstall.dotnetdevelopersjournal.com/how_to_integrate_generated_code_into_your_application.htm]

Code generation is great, but sometimes it can be confusing how to integrate that generated code into your custom application. Keep in mind that an application isn't solely SQL or C#. It could include Html, ASP.Net, Xml, JavaScript, project files, and much more.

• New file: Generate its own, new, separate file. This is the most basic way. You could then integrate it into your other files:
  • (C#) Base Class - For an OOP language like C#, you could code-generate the base class, and then have your derived classes inherit it.
  • (C#) Partial classes - Starting with .Net 2.0, C# offered partial classes which let you split the class definition across multiple physical files.
  • All: Include statements - Many languages offer a way to include one file within another. For example, ASP.Net offers server side includes, MSBuild offers the import command, HTML allows you to reference an external JavaScript, etc... (Yes, you could to this with SQL to using SqlCmds)
• Existing file: Merge into existing file with custom regions. For example, CodeSmith offers two kinds of custom regions:
  • InsertRegion - Insert your generated code into a marked region of a custom file
  • PreserveRegion - Insert your custom code into a code-generated file.

You could also integrate CodeSmith into your builds and processes by calling the CodeSmith console app.