'Declaration<CanBeNullAttribute()> Property Exception As Exception
'UsageDim instance As _EasyUAMonitoredItemChangedEventArgs Dim value As Exception instance.Exception = value value = instance.Exception
[CanBeNull()] Exception Exception {get; set;}
[CanBeNull()] property Exception^ Exception { Exception^ get(); void set ( Exception^ value); }
Your application code should check the Exception first, before accessing the operation data properties.
If you only need to test that the operation has succeeded, you can also use the OpcLabs.BaseLib.OperationModel.OperationEventArgs.Succeeded property.
This property is not serialized into XML. Instead, OpcLabs.BaseLib.OperationModel.OperationEventArgs.ErrorMessage is serialized. Deserializing from XML creates a base OpcLabs.BaseLib.OperationModel.OperationEventArgs.Exception object with just the message.