One of the handy things that you can do with data binding in WPF is that you convert the data as you pull it from the data source. The mechanism for this is the IValueConverter interface. Let's say that you have a list of numbers representing positions in a race, and you want to display this list with the appropriate positional text (for example, 1 is 1st, 2 is 2nd, 3 is 3rd, etc). Rather than save your data in this form (which would not be convenient at all) you could leave the data as an int in the data source, and write a value converter to convert the integer into the appro