Peter Eysermans

Make an AJAX call when the user leaves a web page (using onbeforeunload)

Sometimes you need to send some data to the server before the user leaves your web application. A good example of this is saving data. Instead of giving the user a save button to save the changes he made, the application saves all data if the user navigates away from

First Steps With Azure Storage

At the Aaltra hackathons we get the chance to test out new technologies and broaden our horizon, one of the many things that makes it awesome to work for them. In one of the Belgian Internet of Things community meetups I attended, Pedro Dias gave a demo about the IOT

Integration testing an ASP.Net MVC 5 web application that uses Structuremap

Integration testing, it must've been several years ago that I first got to know the concept. Like unit testing, the benefits were and still are quite obvious. When developing I've found a good set of tools to do unit testing, but finding a set of tools to do integration testing

This was Valiocon 2016

A few weeks ago I was lucky enough to be able to attend Valiocon 2016 for the first time. Although I've attended quite a few developer conferences with deep technical talks, this was my first designer-oriented conference. We flew out to sunny San Diego to get inspired by the great

Show Load Time Of A Page With ASP.Net Web Forms

A little heads up, this solution will not work if you have an ASP.Net AJAX UpdatePanel on your page. The javascript which is loaded by ASP.Net AJAX will throw an error. Of course you're better off throwing out ASP.Net AJAX and just use plain AJAX calls. But

Getting Error MSB3086: Task could not find sgen.exe using the SdkToolsPath when building .Net 4.0 solution with TeamCity 8.0

There are those errors that can really ruin your day. And when you search Google for a solution, the only ones you get are for software versions of a few years ago. With this post I want to make sure I'll remember the solution in the future and hopefully others

A Design Pattern A Day: The Singleton Pattern

The Singleton pattern, probably the most hated pattern on the internet. But for the sake of being complete I feel obligated in implementing it once. And never use it again. Although this pattern has its use cases in some scenario’s. Caching could be one of them. Mind the usage

A Design Pattern A Day: The Decorator Pattern

Last week I started reading the Gang Of Four book for about the fifth time. Unfortunately I’m really bad at reading reference-like books. I always get bored after reading a few design patterns and put the book on my shelf to collect dust again. This time I’ve decided

Starting a project with Express, node.js and Stylus

Node.js gets a lot of attention lately, out of curiosity I decided to try it out. After reading the excellent hands-on node e-book I wanted to port one of my pet projects, a price comparer between different IKEA branches (site is offline) written in ASP.Net MVC to node.

Using an anonymous object as the model for your Spark view

Well another post about Spark, I’ve been spending a couple of hours with the library and I really like it. On one of my previous posts Byron Sommardahl asked if it was possible to use an anonymous object as the model of your Spark view. I proposed a solution