The need to represent strings in a more appropriate format when binding data to the user interface is not uncommon. For example, you might want to present money values or percentages. In WPF you can accomplish this in two modes: string formatters and the
IValueConverter interface. This section describes both, showing how they can be used for better presentation purposes.
Starting from .NET 3.5 SP 1, you can apply string formats directly in the XAML
Binding markup extension that performs data-binding. This allows expressing a particular value type in a more convenient string format. For a better understanding, consider Figure 35.8 Notice now the
Freight field is ...