RachelRachel 133k6767 Gold badges315315 silver badges510510 bronze badges two 3 Rachel, you might be an attractive genius!!! And that i am an idiot. Thanks a great deal for the answer. I used to be binding to self and didn't have a 'ConfigurationModel' property in my IncrementingTextBox class. MaartenMaarten 23k33 gold https://housesalegurugram.video.blog/