RachelRachel 133k6767 gold badges315315 silver badges510510 bronze badges two three Rachel, you might be a beautiful genius!!! And that i am an fool. Thank you a lot of for the solution. I was binding to self and did not have a 'ConfigurationModel' property in my IncrementingTextBox class. So your DataContext https://elanthemarkgurugramproject.blogspot.com/2025/06/ganga-realty-liv-89-serene-low-rise.html