Hello, I am trying to develop a window (WPF) that will collect data in a single textbox. The textblock will say “please enter the minimum value: “and the user hits enter I than want the textblock to change to “please enter the maximum value” I know this is done by data binding. The way I understand it is that the Enter button will increment i by some value, which is being passed into a function. Where the functions output is data bound to the textblock. I know you can sort the data collection by maximum and minimum, but I need that type of layout mentioned above. So I guess my question is it possible to data bind to a function, or is there some other way that I not seeing? Thanks for the help/suggestions/tips