WPF Date Range Double Slider Control (Part 2)

As I mentioned in my introduction to this series, I’m going over various aspects of how I implemented a control that allows a user to choose a DateTime range using a double slider control. In Part One, I covered the basics of what I did to the control templates, put the slider together and showed the IValueConverters I used to handle the conversions from doubles to DateTime and doubles to TimeSpans. In this article, I’ll be talking about what I did to keep the upper value and the lower value sliders from crossing each other. The source for the control and a sample project can be found at CodePlex