RachelRachel 133k6767 gold badges315315 silver badges510510 bronze badges 2 three Rachel, you are a good looking genius!!! And I am an idiot. Thank you much for the answer. I used to be binding to self and did not have a 'ConfigurationModel' property in my IncrementingTextBox class. 0 and higher) - https://greaternoidaresidentialprojects.blogspot.com/