private void NotifyPropertyChanged(string propertyName){
PropertyChangedEventHandler cb_copy = null;
lock(sync){
if(cb!=null){
cb_copy = cb.Clone() as PropertyChangedEventHandler;
}
}
if (cb_copy != null) {
cb_copy(this, new PropertyChangedEventArgs(propertyName));
}
}
private void OnPropertyChanged(string property)
{
//Send notification without acquiring the synchro object
PropertyChangedEventHandler localCopy;
lock (synchro)
{
localCopy = internalPropertyChanged != null ? (PropertyChangedEventHandler)internalPropertyChanged.Clone() : null;
}
if (localCopy != null)
{
localCopy(this, new PropertyChangedEventArgs(property));
}
}