System.Object
   OpcLabs.BaseLib.Object2
      OpcLabs.BaseLib.Info
         OpcLabs.BaseLib.OperationModel.OperationArguments
            OpcLabs.BaseLib.OperationModel.HandleArguments
               OpcLabs.EasyOpc.UA.OperationModel.EasyUASubscriptionChangeArguments
            OpcLabs.EasyOpc.UA.OperationModel.UANodeArguments
               OpcLabs.EasyOpc.UA.OperationModel.UAAttributeArguments
                  OpcLabs.EasyOpc.UA.OperationModel.UAMonitoredItemArguments
                     OpcLabs.EasyOpc.UA.OperationModel.EasyUAMonitoredItemArguments
                        OpcLabs.EasyOpc.UA.Generic.EasyUADataChangeArguments<TValue>
                  OpcLabs.EasyOpc.UA.OperationModel.UAReadArguments
                  OpcLabs.EasyOpc.UA.OperationModel.UAWriteArgumentsBase
                     OpcLabs.EasyOpc.UA.OperationModel.UAWriteArguments
                     OpcLabs.EasyOpc.UA.OperationModel.UAWriteValueArguments
               OpcLabs.EasyOpc.UA.OperationModel.UABrowseArguments
               OpcLabs.EasyOpc.UA.OperationModel.UACallArguments
         OpcLabs.BaseLib.OperationModel.OperationResult
            OpcLabs.BaseLib.OperationModel.ValueResult
               OpcLabs.BaseLib.OperationModel.Generic.ValueResult<T>
                  OpcLabs.EasyOpc.UA.OperationModel.UANodeElementCollectionResult
            OpcLabs.EasyOpc.UA.OperationModel.UAAttributeDataResult
               OpcLabs.EasyOpc.UA.Generic.UAAttributeDataResult<T>
            OpcLabs.EasyOpc.UA.OperationModel.UAWriteResult
   System.Collections.Generic.Dictionary<TKey,TValue>
      OpcLabs.EasyOpc.UA.OperationModel.EasyUAMonitoredItemArgumentsDictionary
   System.EventArgs
      OpcLabs.BaseLib.OperationModel.OperationEventArgs
         OpcLabs.BaseLib.Communication.ConnectedConditionChangedEventArgs
            OpcLabs.EasyOpc.UA.OperationModel.EasyUAServerConditionChangedEventArgs
         OpcLabs.EasyOpc.UA.OperationModel.EasyUAMonitoredItemChangedEventArgs
            OpcLabs.EasyOpc.UA.OperationModel.EasyUADataChangeNotificationEventArgs
               OpcLabs.EasyOpc.UA.Generic.EasyUADataChangeNotificationEventArgs<TValue>
            OpcLabs.EasyOpc.UA.OperationModel.EasyUAEventNotificationEventArgs
   System.Exception
      System.ApplicationException
         OpcLabs.BaseLib.Exception2
            OpcLabs.BaseLib.OperationModel.OperationException
               OpcLabs.EasyOpc.UA.OperationModel.UAException
                  OpcLabs.EasyOpc.UA.OperationModel.UALogicalException

Reference

OpcLabs.EasyOpcUA Assembly