RachelRachel 133k6767 gold badges315315 silver badges510510 bronze badges 2 3 Rachel, you're a wonderful genius!!! And that i am an idiot. Thanks a great deal for the answer. I had been binding to self and didn't have a 'ConfigurationModel' property in my IncrementingTextBox class. Names are improved at readability and https://commercialpropertygurgaon.school.blog/