RachelRachel 133k6767 gold badges315315 silver badges510510 bronze badges 2 three Rachel, that you are a wonderful genius!!! And I am an fool. Thank you a lot of for the solution. I had been binding to self and didn't have a 'ConfigurationModel' property in my IncrementingTextBox class. So your DataContext for https://insiderbusinessnews.blogspot.com/2025/06/ganga-realty-liv-89-ushers-in-elegant.html