Inheritance: System.Threading.SynchronizationContext
 public ExcelDnaIntelliSenseProvider(SynchronizationContext syncContextMain)
 {
     _loaderNotification = new LoaderNotification();
     _loaderNotification.LoadNotification += loaderNotification_LoadNotification;
     _syncContextMain = syncContextMain;
     _syncContextExcel = new ExcelSynchronizationContext();
     _xmlProvider = new XmlIntelliSenseProvider();
     _xmlProvider.Invalidate += (sender, e) => OnInvalidate(null);
     _processLoadNotification = ProcessLoadNotification;
 }
 public XmlIntelliSenseProvider()
 {
     _xmlRegistrationInfos = new Dictionary<string, XmlRegistrationInfo>();
     _syncContextExcel = new ExcelSynchronizationContext();
 }