RachelRachel 133k6767 gold badges315315 silver badges510510 bronze badges 2 3 Rachel, you're a wonderful genius!!! And that i am an idiot. Thanks a great deal of for the answer. I had been binding to self and didn't have a 'ConfigurationModel' property in my IncrementingTextBox course. So your DataContext for "video_length_textbox" https://commerciallandgurgaon.news.blog/