INotifyPropertyChanged property name - hardcode vs reflection?

Question

What is the best way to specify a property name when using INotifyPropertyChanged?

Most examples hardcode the property name as an argument on the PropertyChanged E

Answer 1

Roman:

I'd say you wouldn't even need the "Person" parameter - accordingly, a completely generic snippet like the one below should do:

private int age;
public int Age
{
  get { return age; }
  set
  {
    age = value;
    OnPropertyChanged(() => Age);
  }
}


private void OnPropertyChanged(Expression> exp)
{
  //the cast will always succeed
  MemberExpression memberExpression = (MemberExpression) exp.Body;
  string propertyName = memberExpression.Member.Name;

  if (PropertyChanged != null)
  {
    PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
  }
}

...however, I prefer sticking to string parameters with conditional validation in Debug builds. Josh Smith posted a nice sample on this:

A base class which implements INotifyPropertyChanged

Cheers :) Philipp