Why are some TemplateBinding values not shown in designer but others are? [with repro code]

Question

I\'ve got an odd situation: Following sample code replaces the Content of the window, uses the setter\'s background color and provides a stack panel with two labels. One fo

Answer 1

Found on connect: https://connect.microsoft.com/VisualStudio/feedback/details/770067/wpf-designer-not-sho

Designer creates a proxy for Window classes and not the Window itself. The substitute does not fully reflect all properties therefore has limited functionality.

This issues occurs in VS2012 as well in VS2013.