Colorful serialization

I was writing some code to serialize a C# class to JSON and needed to export a System.Drawing.Color field as a hex string. Thankfully it's easy to customize the output using Json.NET. I created the following custom converter to save colors as hex strings (like #FFF0B6)

And example usage:

Exclusive checkbox column

We had a customer that had a checkbox grid and wanted the checkboxes in one of the rows to be exclusive (e.g. when checked no other items in that column are checked). Most survey platforms have this functionality for a multiple choice checkbox question but not for columns in a checkbox grid. Some quick jQuery and JavaScript coding I had the following mostly generic function working.

Working demo: JSFiddle