| Name | Description | |
|---|---|---|
|  | EventingFailure | Raised when a failure in the eventing infrastructure occurs. | 
|  | ItemChanged | Raised for every significant change in an OPC item subscribed to by the SubscribeItem method. | 
 
            The following tables list the members exposed by DEasyDAClientEvents.
| Name | Description | |
|---|---|---|
|  | EventingFailure | Raised when a failure in the eventing infrastructure occurs. | 
|  | ItemChanged | Raised for every significant change in an OPC item subscribed to by the SubscribeItem method. |