RachelRachel 133k6767 Gold badges315315 silver badges510510 bronze badges 2 3 Rachel, you might be a beautiful genius!!! And I am an fool. Thanks a lot for the solution. I had been binding to self and did not have a 'ConfigurationModel' property in my IncrementingTextBox course. So your DataContext for "video_length_textbox" https://maxestatesgurgaonfloorplan.blogspot.com/2025/07/ganga-realty-liv-89-sector-89-gurgaon.html