protected void OnPropertySet(string property, object oldValue, object newValue)
{
// Raise property change if the new value is different from the old value
if (this.EntityState != System.Data.EntityState.Detached && ((oldValue == null ^ newValue == null) || (oldValue != null && !oldValue.Equals(newValue))))
{
instance.OnPropertyChanged(property, oldValue, newValue);
}
}
