RachelRachel 133k6767 gold badges315315 silver badges510510 bronze badges 2 three Rachel, you're a lovely genius!!! And that i am an idiot. Thank you much for the solution. I used to be binding to self and didn't have a 'ConfigurationModel' property in my IncrementingTextBox class. Names are greater at readability and https://prelaunchedprojectsinnoida.blogspot.com/