Happy new year folks, we just rolled out the WebSharper 2.0 Beta4 release - with an enhanced installer and better support for sitelet-based development with some significant performance improvements. The new installer also became smarter and for new users obtains a 90-day trial license automatically so you no longer have to manually activate.

Following on from part 2 where I wrote a simple page with a canvas area where you can scribble, I thought I’d add a couple of new features: ability to show the image as PNG image so user can save it change the line cap change the line join change the shadow settings (colour, offset, [...]

This is a neat trick I picked up the other day, you can create a dynamic class which takes in a set of properties in the constructor and dynamically generates Accessor and/or Mutation methods (you just have to choose which lines to leave out): In your calling code, you can then create a new class [...]

In C# and other similar general purpose languages, there are access modifiers which allow you to specify whether a particular property can be accessed/modified by everyone (public), only subclasses (protected) or only from within the same class (private). In these languages, creating an immutable type usually involves: making all properties publicly gettable making all properties [...]

Earlier I explored some of the basic drawing methods available on the 2D context of the new canvas element in HTML5, moving on from there, I’ve put together another quick demo here (see image below) which lets the user scribble inside the canvas element. HTML The HTML for the page is simple enough, the key [...]