• React vs. Blazor: a comparison

    Luke Canvin

    If you want to write a dynamic web application in 2019 then the chances are that you will reach out for a JavaScript solution, and that solution will probably be React. We compare React to Blazor, a new .NET framework allowing you to write in C# for the front and back ends.

  • Using JSON for polymorphic types in C#

    Luke Canvin

    Using Blazor, code written for the front-end has access to all the language features of C#. In particular, it may be useful to have a type hierarchy and make use of polymorphism. However, JSON objects have no explicit type, so how can we correctly deserialise a subtype?

  • Event Sourcing with EventFlow and Azure Cosmos DB

    Luke Canvin

    In our Dev Camp this year we chose to experiment with Event Sourcing, using EventFlow for the solution. One task was to configure it to use an Azure Cosmos database instead of a SQL Server one. There were some hurdles to overcome. This post takes you through the attempts we made and the solution we found.

  • Dev Camp 2019 – Day 5

    Luke Canvin

    Our final day saw huge progress in the application's client and server sides coming together. This was really the focus of the day with everyone working together to solve the final challenges and get the client communicating with the server.

  • Dev Camp 2019 – Day 3

    Luke Canvin

    By the end of day 3 we'd managed to get the Blazor application constructing a dynamic form based on an external set of defined fields and having those fields be validated dynamically on the client-side again based on externally defined validation rules. Here's what that looks like...

  • Dev Camp 2019 – Day 2

    Luke Canvin

    In day 2 the team continued making progress in each of their areas. The EventFlow project begins to come together, shared client and server validation plans are made, and getting Event Flow working with Cosmos DB causes frustration.

  • Dev Camp 2019

    Luke Canvin

    At OCC, dev camps are a way for us to experiment with new technologies, create prototype products, and bring back recommendations to the wider company regarding the new tools and techniques we've been able to evaluate.

  • Tom’s thoughts on AngularJS, TypeScript, SignalR, D3.js and Git

    Tom Litt

    OCC DevCamp has been a great opportunity to put the day-job to one side and try out some new technologies. Here are some thoughts on how I got on with them. AngularJS AngularJS is Google’s offering in the JavaScript application building framework arena. Having previously used Knockout I wanted to use a different framework for comparison. I’ve felt that Knockout isn’t especially well suited to large applications, and it seems to struggle in terms of performance when handling a large[...]

  • Chris’ thoughts on HTML5 Canvas, SignalR and Git

    Chris Griggs

    HTML5 Canvas HTML5 canvas is a powerful little container for graphics which I only used the smallest set of features of. Other features to explore would be changing of line colours/styles, and of drawing shapes. There are also other algorithms for drawing lines (Bezier/Quadratic) that might lead to smoother lines. Problems arose due to different implementations between web-browsers; chrome seemed to fare the worst here, especially when reporting the position of events. Some of the other features of HTML5/CSS3 I[...]

  • Andrew’s thoughts on Git, Xamarin and SignalR

    Andrew Wroe

    My focus for DevCamp was building an Android app that would interact with the presentation web app in realtime. You can read the details of how we achieved that in my previous post Using SignalR in native Android and iOS apps. For that we made use of a toolkit called Xamarin, as well as the ASP.NET SignalR library, and Git for source control. Xamarin Xamarin is a toolkit that allows you to use C# to write code for native Android[...]

  • Mel’s thoughts on SignalR, AngularJS and TypeScript

    Mel Mason

    I spent most of the DevCamp week working on the client applications: the presentation itself (minus the annotations and the graphs), the secondary screen and the audience view. So the new technologies I spent most of my time on were AngularJS and TypeScript, with a little time spent on SignalR. SignalR I didn’t spend much time delving into SignalR, mostly because I didn’t need to. The code to set up a connection between clients and server is very concise and[...]