Hi,

Whenever I add a thumb programatically, it doesn't show up on the slider.  If I add it through XAML, then it works fine.  I am using the 2010.3 version of the XamSlider.  I have followed the code example found here.  I have attached a sample solution demonstrating this behaviour.   I can tell that the thumb is being added as the fill on the slider track changes up to the point of the value of the new thumb, but the actual thumb itself doesn't appear and cannot be manipulated by the user.

Are there other properties that need to be set when adding the thumb programatically?