protected void ClearAllEvents()
{
if (PropertyChanged != null)
{
foreach (var eventhandler in PropertyChanged.GetInvocationList())
{
PropertyChanged -= (PropertyChangedEventHandler)eventhandler;
}
PropertyChanged = null;
}
if (NotifyDirty != null)
{
foreach (var eventhandler in NotifyDirty.GetInvocationList())
{
NotifyDirty -= (System.EventHandler)eventhandler;
}
NotifyDirty = null;
}
if (ObjectChanged != null)
{
foreach (var eventhandler in ObjectChanged.GetInvocationList())
{
ObjectChanged -= (ObjectChangedEventHandler)eventhandler;
}
ObjectChanged = null;
}
}
protected void NotifyPropertyChanged(string propertyName)
{
VerifyHasProperty(propertyName);
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
// Changing any property fires the NotifyDirty event.
NotifyDirty?.Invoke(this, EventArgs.Empty);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="observer">Delegate to notify about settings changes</param>
public ScannerSettings(NotifyDirty notify)
{
notifyDirty_ = notify;
}