Techno Curry

In my last blog post I talked about the Spark Tree from Maxim . When I was looking for a Spark Tree my final objective was to have a Spark Tree with a custom renderer that involved a three state checkbox. A checkbox that could show selected, unselected and "intermediate" states. After googling a bit I decided it was a good exercise to build on from scratch in Spark using Skins. It turned out to be much easier than I thought so I decided Ill share the full sample code here. 

This sample is a Spark Tree from Maxim http://kachurovskiy.com/2010/spark-tree/ that has a Custom Renderer with a 3 state checkbox that indicates when a child element is selected. I have also included a custom class for the Data which controls the child elements and parent elements states. This is just a sample so the code is a bit messy, since I did all the clean up in my main project after I established proof of concept. 

Here is the sample with view source enabled. Spark Tree with Checkbox renderer