RachelRachel 133k6767 gold badges315315 silver badges510510 bronze badges two 3 Rachel, you might be a wonderful genius!!! And I am an fool. Thanks much for the solution. I used to be binding to self and didn't have a 'ConfigurationModel' property in my IncrementingTextBox course. ✦ Think about refactoring a class https://sites.google.com/view/maxestatesgurgaon