CRM 2011: Custom Workflow Activity Output Parameters don´t show

Question

everyone, I'm having a problem that does not appear in the output parameter list on the right side under "Look for" underneath "Local Values", I do not understand the problem or reason for not appear, since in terms of input parameters's okay.

protected override void Execute(CodeActivityContext executionContext)
        {
            ITracingService tracingService = executionContext.GetExtension<ITracingService>();

            //Create the context
            IWorkflowContext context = executionContext.GetExtension<IWorkflowContext>();
            IOrganizationServiceFactory serviceFactory = executionContext.GetExtension<IOrganizationServiceFactory>();
            IOrganizationService service = serviceFactory.CreateOrganizationService(context.UserId);

            tracingService.Trace("Creating Account");

            Account entity = new Account();
            entity.Name = AccountName.Get<string>(executionContext);
            Guid entityId = service.Create(entity);

            string a = entity.Name;

            AccountNameTest.Set(executionContext, a);

            tracingService.Trace("Account created with Id {0}", entityId.ToString());

            tracingService.Trace("Create a task for the account");
            Task newTask = new Task();
            newTask.Subject = TaskSubject.Get<string>(executionContext);
            newTask.RegardingObjectId = new EntityReference(Account.EntityLogicalName, entityId);

            Guid taskId = service.Create(newTask);

            tracingService.Trace("Task has been created");

            tracingService.Trace("Retrieve the task using QueryByAttribute");
            QueryByAttribute query = new QueryByAttribute();
            query.Attributes.AddRange(new string[] { "regardingobjectid" });
            query.ColumnSet = new ColumnSet(new string[] { "subject" });
            query.EntityName = Task.EntityLogicalName;
            query.Values.AddRange(new object[] { entityId });

            tracingService.Trace("Executing the Query for entity {0}", query.EntityName);

            //Execute using a request to test the OOB (XRM) message contracts
            RetrieveMultipleRequest request = new RetrieveMultipleRequest();
            request.Query = query;
            Collection<Entity> entityList = ((RetrieveMultipleResponse)service.Execute(request)).EntityCollection.Entities;

            //Execute a request from the CRM message assembly
            tracingService.Trace("Executing a WhoAmIRequest");
            service.Execute(new WhoAmIRequest());

            if (1 != entityList.Count)
            {
                tracingService.Trace("The entity list was too long");
                throw new InvalidPluginExecutionException("Query did not execute correctly");
            }
            else
            {
                tracingService.Trace("Casting the Task from RetrieveMultiple to strong type");
                Task retrievedTask = (Task)entityList[0];

                if (retrievedTask.ActivityId != taskId)
                {
                    throw new InvalidPluginExecutionException("Incorrect task was retrieved");
                }

                tracingService.Trace("Retrieving the entity from IOrganizationService");

                //Retrieve the task using Retrieve
                retrievedTask = (Task)service.Retrieve(Task.EntityLogicalName, retrievedTask.Id, new ColumnSet("subject"));
                if (!string.Equals(newTask.Subject, retrievedTask.Subject, StringComparison.Ordinal))
                {
                    throw new InvalidPluginExecutionException("Task's subject did not get retrieved correctly");
                }

                //Update the task
                retrievedTask.Subject = UpdatedTaskSubject.Get<string>(executionContext);
                service.Update(retrievedTask);
            }
        }
        //
        [Input("Name conta")]
        [Default("testv01")]
        public InArgument<string> AccountName { get; set; }

        [Input("Task")]
        [Default("testv01")]
        public InArgument<string> TaskSubject { get; set; }

        [Input("Update task")]
        [Default("testUPDATED:v01}")]
        public InArgument<string> UpdatedTaskSubject { get; set; }

        [Output("Account ID Guid")]
        [Default("testUPDATED:v01")]
        public OutArgument<string> AccountNameTest { get; set; }

Answer 1

Ok, problem solved, just restart IIS to assume the fields, or through version change. The problem was the update of the plugin, this also happens with workflows. According to CRM 4.0 i realized this situation does not happen in CRM 4.0.

Answer 2

Even though this Question is already answered I wanted to share two Cases where this solution didn't work (even in a recent Version of CRM):

Case 1

Having choosen Input-Parameter-Names that contained german Umlauts (äöüß).

IIS-restart did not help. Choosing Names without Umlauts solved the Problem for me.

Case 2

We recently also had a case where a normal In-Argument did not show up, even after restarting the entire Maschine CRM was running on. The Solution was not to obvious:

1. Open PluginRegistrationTool from SDK
2. Choose the Assembly that contains your CWA
3. Choose your CWA
4. Hit the Save-Button in the Properties-Tab of your CWA