Blog

A useful feature for most data-bound items presenting controls is the ability to page their data, by showing only the first n elements and requesting the rest on demand as the users scrolls down the view. This is specially useful when downloading each...

WPF introduced a new concept for managing properties which is dependency properties. Dependency properties can act as standard properties, but also offer a lot more functionality, such as data binding, assignment through resources, setters in styles...

Since Silverlight 2 Beta 2 introduced the WebClient class, I decided to refactor an application we had by replacing all references to HttpWebRequest with the new client. Its methods seemed much more simple and clear, and I didn’t even need to write...

Silverlight Beta 2 doesn’t support double click, but since I needed it, I implemented it. I’ve created a class named Mouse. You create a Mouse instance that wraps an UIElement. The instance attaches itself to the MouseLeftDownButton and, using a timer...

For almost any developer who has worked in GUIs the concept of data binding should be at least familiar. If you have an Article and want to show its code and price, you just place two textboxes bound to those properties and place some invisible magical...

Next steps for Riff

Silverlight 2 Beta 2 Breaking Changes

One of the current most interesting technologies around is Microsoft Silverlight, whose intention is to provide a programmer and designer friendly way to develop web UIs. It is basically a subset of Windows Presentation Foundation, although it has...

How to create "recursive" functions in λ-calculus

Today we had the orientation presentation for an Internship that two students from Trinity College will be doing around Riff/RNA. They will be helping us build some classification tools involving machine learning with SVM’s and Bayesian classifiers...