範例：建立自訂工作流程活動

 

發行︰ 2017年1月

適用於： Dynamics 365 (online)、Dynamics 365 (on-premises)、Dynamics CRM 2016、Dynamics CRM Online

這個範例程式碼適用於 Microsoft Dynamics 365 (線上和內部部署)。下載 Microsoft Dynamics CRM SDK 套件。 可以在下列位置的下載套件中找到：

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

需求

如需執行此 SDK 所提供範例程式碼的需求資訊，請參閱使用範例和 Helper 程式碼。

示範

此範例說明如何撰寫可建立客戶並為客戶建立工作的自訂工作流程活動。 此範例使用早期繫結。

範例

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; }
    }
}

另請參閱

自訂工作流程活動 (工作流程組件)
範例：使用自訂工作流程活動更新下一次生日
Dynamics 365 程序的範例程式碼
建立自訂工作流程活動
新增中繼資料至自訂工作流程活動
在自訂工作流程活動中使用 IOrganization Web 服務

Microsoft Dynamics 365

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