IEventHookServiceRaiseEvent(Guid, ActionDelegate) Method

Raises an application event, but gives the caller control over how each subscriber is invoked.

Namespace: Dundas.BI
Assembly: Dundas.BI.Core (in Dundas.BI.Core.dll) Version: 2.0.0.0 (26.2.0.1000)
Syntax
Copy
void RaiseEvent(
	Guid eventHookId,
	Action<Delegate> invokeSubscriberAction
)

Parameters

eventHookId  Guid
The ID of the event hook.
invokeSubscriberAction  ActionDelegate
The delegate to invoke a subscriber. See remarks.
Exceptions
ExceptionCondition
ArgumentExceptioneventHookId was Empty.
ArgumentNullExceptioninvokeSubscriberAction was .
Remarks
For each subscriber to the event, invokeSubscriberAction will be invoked. The parameter to invokeSubscriberAction is the delegate representing the subscriber, which invokeSubscriberAction is responsible for invoking with the proper arguments.
Example

This example shows how this RaiseEvent overload can be used to put a try/catch around all subscribers to an event. Raising the event in this manner means that all subscribers will be invoked, even if one of them throws an exception.

C#
Copy
object sender = this;
EventArgs eventArgs = EventArgs.Empty;
Engine.Current.GetService<IEventHookService>.RaiseEvent(
  myEventHookId,
  (Delegate eventSubscriber) => {
    try
    {
        eventSubscriber.DynamicInvoke(sender, eventArgs);
    }
    catch (Exception ex)
    {
        string subscriberName = eventSubscriber.Method.DeclaringType.FullName + "." + eventSubscriber.Method.Name;
        string logMsg = "Error invoking event subscriber " + subscriberName + ". Details: " + ex.ToString();
        Engine.Current.GetService<ILoggingService>().LogError("MyLogChannel", 0, logMsg);
    }
  }
);
See Also