CRM plugin invinite loop prevention

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  Hi,

  i read already a lot about the context.Depth property and i understood it completly, but my problem is this comment: "now exit - if the derived plug-in has incorrectly registered overlapping event registrations" in a newly created plugin by visual studio.

  Context.Depth and this exit here handle different cases of problems which can occur right?

  And the other question is why i need this exit here, beccause when the plugin iterates over the list of registrated steps like "create" there is a FirstOrDefault(). So the plugin takes always the first action even if there are more actions registrated. As you see in the code stub below.

  I don't understand this comment and what it is for!

  The following code i copied out of the auto generated project for microsoft crm when you create a new plugin with visual studio 2012.

  // Iterate over all of the expected registered events to ensure that the plugin
                  // has been invoked by an expected event
                  // For any given plug-in event at an instance in time, we would expect at most 1 result to match.
                  Action<LocalPluginContext> entityAction =
                      (from a in this.RegisteredEvents
                       where (
                       a.Item1 == localcontext.PluginExecutionContext.Stage &&
                       a.Item2 == localcontext.PluginExecutionContext.MessageName &&
                       (string.IsNullOrWhiteSpace(a.Item3) ? true : a.Item3 == localcontext.PluginExecutionContext.PrimaryEntityName)
                       )
                       select a.Item4).FirstOrDefault();

  Kind Regards

  Markus

  
  

  • Edited by Markus Benz Thursday, November 21, 2013 9:31 AM

  Thursday, November 21, 2013 9:30 AM