RachelRachel 133k6767 gold badges315315 silver badges510510 bronze badges 2 three Rachel, you are a lovely genius!!! And I am an idiot. Thanks a great deal of for the solution. I had been binding to self and didn't have a 'ConfigurationModel' property in my IncrementingTextBox course. MaartenMaarten 23k33 gold badges5151 silver https://centralpark104gurgaon.blogspot.com