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Blogs from OpenLightGroup.net


The Seeker – Version 2.0

Version 2.0 keeps some continuous action going by introducing Prey for the seekers to follow around. The Prey has a true graphic representation, a green circle created by choosing an Ellipse from the Asset panel, then drawing it with the shift key held down so it will be constrained to circular dimensions. The Seeker now watches its target after initially becoming aware of it through an event – which is generated when a new prey is created through a left mouse click...

The Seeker – Version 1.0

When I’m trying to learn any new language, framework, or  the like, I often find myself frustrated because blogs and tutorials obscure the simple concepts I’m trying to understand with too much detail. My goal is to start very simply so that the programming concepts are laid-out in small, easy-to-understand chunks of code. Then with each version to expand the use of those concepts and add in some very simple examples of a few new ones. I never get to do it on the job, but my favorite kind of programming is to create intelligent objects that interact onscreen. My first Silverlight project in that line is The Seeker. The seeker reacts to an onscreen event by moving towards it. In this case the event is the drop part of a drag and drop operation. The important concepts are: -    Publishing and consuming events -    Programmatically adding and positioning controls on screen -    Drag and drop -    Animation / Storyboard -    Internal Logic -    Calculating distance onscreen The images below show the starting positions, the seekers...

RIA Services, Windows Authentication & GetUser Error

Like many other developers I have been excited to see that WCF RIA Services has gone beta and now comes with a Go-Live license. After this release my team at Wash U began developing a few applications using the new RIA Services bits. We have been very impressed with ...

Silverlight Changes Everything

Here's an interesting video that gives you an idea of what working with data on the web can be like using Silverlight. The thing that is interesting is that there are no "pages" to the application. Things just "pop out" and the objects on the ...

Helpful Developer Resources

In college my instructor taught us that it is not always knowing the answer but knowing where to find it. In the mindset, this post is simply a list of other blogs, twitter accounts \ lists and books that I have found helpful in the recent past. Hopefully these ...