RachelRachel 133k6767 Gold badges315315 silver badges510510 bronze badges 2 3 Rachel, you're a wonderful genius!!! And I am an fool. Thanks a great deal of for the solution. I used to be binding to self and didn't have a 'ConfigurationModel' property in my IncrementingTextBox course. So your DataContext for "video_length_textbox" https://navrajinfratechpropertygurgaon.sport.blog/