Beispiel: Eine benutzerdefinierte Workflowaktivität erstellen

Veröffentlicht: Januar 2017

Gilt für: Dynamics 365 (online), Dynamics 365 (on-premises), Dynamics CRM 2016, Dynamics CRM Online

Dieser Beispielcode ist für Microsoft Dynamics 365 (online und lokal).Laden Sie das Microsoft Dynamics CRM SDK-Paket herunter. Dieser ist an folgender Position im SDK-Downloadpaket verfügbar:

SampleCode\CS\Process\CustomWorkflowActivity\TestNet4Activity\SimpleSdkActivity.cs

Anforderungen

Weitere Informationen zu den Anforderungen zum Ausführen des in diesem SDK enthaltenen Beispielcodes finden Sie unter Verwenden des Beispiel- und Hilfscode.

Demonstriert

Dieses Beispiel zeigt, wie Sie eine benutzerdefinierte Workflowaktivität schreiben, die eine neue Firma sowie eine Aufgabe für die Firma erstellen kann. Dieses Beispiel verwendet frühere Bindungen.

Beispiel

using System;
using System.Activities;
using System.Collections.ObjectModel;

using Microsoft.Crm.Sdk.Messages;

using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Messages;
using Microsoft.Xrm.Sdk.Query;
using Microsoft.Xrm.Sdk.Workflow;

namespace Microsoft.Crm.Sdk.Samples
{
    public sealed class SimpleSdkActivity : CodeActivity
    {
        protected override void Execute(CodeActivityContext executionContext)
        {
            //Create the tracing service
            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);

            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("Account Name")]
        [Default("Test Account: {575A8B41-F8D7-4DCE-B2EA-3FFDE936AB1B}")]
        public InArgument<string> AccountName { get; set; }

        [Input("Task Subject")]
        [Default("Task related to account {575A8B41-F8D7-4DCE-B2EA-3FFDE936AB1B}")]
        public InArgument<string> TaskSubject { get; set; }

        [Input("Updated Task Subject")]
        [Default("UPDATED: Task related to account {575A8B41-F8D7-4DCE-B2EA-3FFDE936AB1B}")]
        public InArgument<string> UpdatedTaskSubject { get; set; }
    }

    public sealed class SdkWithLooselyTypesActivity : CodeActivity
    {
        protected override void Execute(CodeActivityContext executionContext)
        {
            //Create the tracing service
            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");

            tracingService.Trace("Creating Account");

            Entity entity = new Entity("account");
            entity.Attributes["name"] = AccountName.Get<string>(executionContext);
            Guid entityId = service.Create(entity);

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

            tracingService.Trace("Create a task for the account");
            Entity newTask = new Entity("task");
            newTask["subject"] = TaskSubject.Get<string>(executionContext);
            newTask["regardingobjectid"] = new EntityReference("account", entityId);

            Guid taskId = service.Create(newTask);

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

            Entity updateTask = new Entity("task");
            updateTask.Id = taskId;
            updateTask["subject"] = UpdatedTaskSubject.Get<string>(executionContext);
            service.Update(updateTask);

            tracingService.Trace("Task has been updated");
        }

        [Input("Account Name")]
        [Default("Test Account: {575A8B41-F8D7-4DCE-B2EA-3FFDE936AB1B}")]
        public InArgument<string> AccountName { get; set; }

        [Input("Task Subject")]
        [Default("Task related to account {575A8B41-F8D7-4DCE-B2EA-3FFDE936AB1B}")]
        public InArgument<string> TaskSubject { get; set; }

        [Input("Updated Task Subject")]
        [Default("UPDATED: Task related to account {575A8B41-F8D7-4DCE-B2EA-3FFDE936AB1B}")]
        public InArgument<string> UpdatedTaskSubject { get; set; }
    }

    public sealed class SimpleSdkWithRelatedEntitiesActivity : CodeActivity
    {
        protected override void Execute(CodeActivityContext executionContext)
        {
            //Create the tracing service
            ITracingService tracingService = executionContext.GetExtension<ITracingService>();

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

            Relationship primaryContactRelationship = new Relationship("account_primary_contact");

            Guid primaryContactId = service.Create(new Contact() { LastName = RootContactLastName.Get<string>(executionContext) });

            //tracingService.Trace("Create an Account with an existing primary contact");
            Account rootAccount = new Account() { Name = RelatedAccountName.Get<string>(executionContext) };
            Contact primaryContact = new Contact()
            {
                EntityState = EntityState.Changed,
                Id = primaryContactId,
                FirstName = RootContactFirstName.Get<string>(executionContext)
            };

            rootAccount.RelatedEntities[primaryContactRelationship] =
                new EntityCollection(new Entity[] { primaryContact }) { EntityName = Contact.EntityLogicalName };

            tracingService.Trace("Execute the Create/Update");
            rootAccount.Id = service.Create(rootAccount);

            //Create the related entities query
            RelationshipQueryCollection retrieveRelatedEntities = new RelationshipQueryCollection();
            retrieveRelatedEntities[primaryContactRelationship] = new QueryExpression(Account.EntityLogicalName)
            {
                ColumnSet = new ColumnSet("name"),
                Criteria = new FilterExpression()
            };

            //Create the request
            RetrieveResponse response = (RetrieveResponse)service.Execute(new RetrieveRequest()
            {
                ColumnSet = new ColumnSet("firstname"),
                RelatedEntitiesQuery = retrieveRelatedEntities,
                Target = new EntityReference(primaryContact.LogicalName, primaryContact.Id)
            });

            tracingService.Trace("Retrieve the record with its related entities");
            Contact retrievedContact = (Contact)response.Entity;
            Account retrievedAccount = (Account)retrievedContact.RelatedEntities[primaryContactRelationship][0];

            tracingService.Trace("Ensure the first name was updated");
            if (retrievedContact.FirstName == primaryContact.FirstName)
            {
                tracingService.Trace("Primary Contact name is correct");
            }
            else
            {
                tracingService.Trace("First Name is \"{0}\", expected \"{1}\".", retrievedContact.FirstName, primaryContact.FirstName);
                throw new InvalidPluginExecutionException("The first name was not changed");
            }
        }

        [Input("Related Account Name")]
        [Default("Related Account")]
        public InArgument<string> RelatedAccountName { get; set; }

        [Input("Root Contact First Name")]
        [Default("New FirstName")]
        public InArgument<string> RootContactFirstName { get; set; }

        [Input("Root Contact Last Name")]
        [Default("Root LastName")]
        public InArgument<string> RootContactLastName { get; set; }
    }
}

Siehe auch

Benutzerdefinierte Workflowaktivitäten (Workflowassemblys)
Beispiel: Aktualisieren des nächsten Geburtstags mithilfe einer benutzerdefinierten Workflowaktivität
Beispielcode für Dynamics 365-Prozesse
Erstellen einer benutzerdefinierten Workflowaktivität
Einer benutzerdefinierten Workflowaktivität Metadaten hinzufügen
Verwenden des IOrganization-Webdiensts in einer benutzerdefinierten Workflowaktivität

Microsoft Dynamics 365

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