public static void Notify <TMember>(
this INotifyPropertyChanged sender,
PropertyChangedEventHandler handler,
Expression <Func <TMember> > expression)
{
if (sender == null)
{
throw new ArgumentNullException("sender");
}
if (expression == null)
{
throw new ArgumentNullException("expression");
}
var body = expression.Body as MemberExpression;
if (body == null)
{
throw new ArgumentException("The expression must target a property or field.", "expression");
}
string propertyName = PropertyChangedExt.GetPropertyName(body, sender.GetType());
PropertyChangedExt.NotifyCore(sender, handler, propertyName);
}
private static bool PropertyChanged(MemberExpression expression, Type ownerType, PropertyChangedEventArgs e, bool targetPropertyOnly)
{
var propertyName = PropertyChangedExt.GetPropertyName(expression, ownerType);
return(PropertyChangedExt.PropertyChanged(propertyName, e, targetPropertyOnly));
}