RachelRachel 133k6767 gold badges315315 silver badges510510 bronze badges 2 3 Rachel, you will be a good looking genius!!! And I am an idiot. Thank you a lot of for the answer. I had been binding to self and didn't have a 'ConfigurationModel' property in my IncrementingTextBox class. @property is usually https://4bhkapartmentsm3m.blogspot.com/2025/06/jms-mega-city-sohna-redefining.html