RachelRachel 133k6767 Gold badges315315 silver badges510510 bronze badges two three Rachel, you are a gorgeous genius!!! And I am an fool. Thanks a lot for the solution. I was binding to self and did not have a 'ConfigurationModel' property in my IncrementingTextBox class. Normally it'll return the current, potentially transforming https://godrejsector49gurugram.blogspot.com