I am trying to create a custom widget / modify the Categories widget so that it only show children under a selected parent category. I have stumbled across this blog post which sounds like it will do exactly what I want.
I have created the class in my project but I am struggling to see how I deploy it in Sitefinity. Do I need to create a Custom widget and link to this class or do I need to modify something in the admin section?
Any help would be greatly appreciated.
If it inherits from TaxonomyControl then just open your backend advacned settings toolbox node, look for the existing tag\category toolbox items. Just copy down all the fields there, and then make a new node (in the UI), paste in all the fields EXCEPT for the type, the new type will be the "namespace.class, assembly" of your version.
No recycle nessesary, reload the page editor and it should be there
(This all assumes the "code" is live...)