RachelRachel 133k6767 gold badges315315 silver badges510510 bronze badges 2 three Rachel, you might be a lovely genius!!! And I am an idiot. Thanks a lot for the answer. I was binding to self and did not have a 'ConfigurationModel' property in my IncrementingTextBox course. MaartenMaarten 23k33 gold badges5151 silver badges6969 https://m3mupcomingprojectsector58.blogspot.com