WPF trim property value before binding

You will need to use a converter for this:
Here is what the converter would look like (I havent compiled it):

public class VehicleNameConverter : IValueConverter

{

public object Convert(object value, Type targetType,object parameter, CultureInfo culture)

{

var vehicleName=System.Convert.ToString(value);

var splitValue=vehicleName.Split('.');

if(splitValue.Length==2)

return splitValue[1];

else

return value

}

public object ConvertBack(object value, Type targetType,object parameter, CultureInfo culture)

{

throw new NotImplementedException();

}

Declare it as static resource of your control/window:
VehicleNameConverter x:Key="vConv"/>

And then you can use this in your xaml binding: