Is there any way to bind a value to a textblock that is obtained from a method. For example, I pass my Person object into the HierarchicalDataTemplate, from there I can access its Weight property. Now lets say I want to get the weight in mars, I would call the InMars method that takes a parameter of int EarthWeight . Now earthweight is going to change from Person to Person, how can this parameter be set every time?
The best way to do this is with a converter.
public class WeightOnMarsConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
// value will be the persons weight
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotSupportedException("This method should never be called");
}
}
Then you just need to set up the binding.
<l:WeightOnMarsConverter x:key="weightOnMars" /> <-- Add this to the resources
{Binding Path=Weight, Converter={StaticResource weightOnMars}}