Beispiel: Aktualisieren des nächsten Geburtstags mithilfe einer benutzerdefinierten Workflowaktivität
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\ReleaseISVActivities.cs
Anforderungen
Das folgende benutzerdefinierte Feld muss vorhanden sein, damit diese benutzerdefinierte Workflowaktivität funktioniert:
- Contact.new_nextbirthday
Demonstriert
Die folgende Beispielworkflowaktivität gibt den nächsten Geburtstag zurück. Verwenden Sie das Beispiel in einem Workflow, der einen Geburtstagsgruß an einen Kunden sendet.
Beispiel
using System;
using System.Activities;
using System.Collections;
using System.Reflection;
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Messages;
using Microsoft.Xrm.Sdk.Query;
using Microsoft.Xrm.Sdk.Workflow;
namespace Microsoft.Crm.Sdk.Samples
{
/// <summary>
/// Activity will return the next upcoming birthday that has just passed
///
/// If this year's birthday has not yet occurred, it will return this year's birthday
/// Otherwise, it will return the birthday for next year
///
/// A workflow can timeout when on this date
/// </summary>
[Persist]
public sealed partial class ReleaseScenario_UpdateNextBirthday : CodeActivity
{
protected override void Execute(CodeActivityContext executionContext)
{
IWorkflowContext context = executionContext.GetExtension<IWorkflowContext>();
//Create an Organization Service
IOrganizationServiceFactory serviceFactory = executionContext.GetExtension<IOrganizationServiceFactory>();
IOrganizationService service = serviceFactory.CreateOrganizationService(context.InitiatingUserId);
//Retrieve the contact id
Guid contactId = this.Contact.Get(executionContext).Id;
//Create the request
RetrieveRequest request = new RetrieveRequest();
request.ColumnSet = new ColumnSet(new string[] { "birthdate" });
request.Target = new EntityReference(EntityName.Contact, contactId);
//Retrieve the entity to determine what the birthdate is set at
Entity entity = (Entity)((RetrieveResponse)service.Execute(request)).Entity;
//Extract the date out of the entity
DateTime? birthdate;
if (entity.Contains(ContactAttributes.Birthdate))
{
birthdate = (DateTime?)entity[ContactAttributes.Birthdate];
}
else
{
birthdate = null;
}
//Check to see if the current birthday is set. We don't want the activity to fail if the birthdate is not set
if (birthdate == null)
{
return;
}
//Calculate the next birthdate. Encapsulated in a methdo so that the method can be used in the test case for verification purposes
DateTime nextBirthdate = CalculateNextBirthday(birthdate.Value);
//Update the next birthday field on the entity
Entity updateEntity = new Entity(EntityName.Contact);
updateEntity.Id = contactId;
updateEntity["new_nextbirthday"] = nextBirthdate;
service.Update(updateEntity);
}
//Define the properties
[RequiredArgument]
[Input("Update Next Birthdate for")]
[ReferenceTarget("contact")]
public InArgument<EntityReference> Contact { get; set; }
private DateTime CalculateNextBirthday(DateTime birthdate)
{
DateTime nextBirthday = new DateTime(birthdate.Year, birthdate.Month, birthdate.Day);
//Check to see if this birthday occurred on a leap year
bool leapYearAdjust = false;
if (nextBirthday.Month == 2 && nextBirthday.Day == 29)
{
//Sanity check, was that year a leap year
if (DateTime.IsLeapYear(nextBirthday.Year))
{
//Check to see if the current year is a leap year
if (!DateTime.IsLeapYear(DateTime.Now.Year))
{
//Push the date to March 1st so that the date arithmetic will function correctly
nextBirthday = nextBirthday.AddDays(1);
leapYearAdjust = true;
}
}
else
{
throw new Exception("Invalid Birthdate specified", new ArgumentException("Birthdate"));
}
}
//Calculate the year difference
nextBirthday = nextBirthday.AddYears(DateTime.Now.Year - nextBirthday.Year);
//Check to see if the date was adjusted
if (leapYearAdjust && DateTime.IsLeapYear(nextBirthday.Year))
{
nextBirthday = nextBirthday.AddDays(-1);
}
return nextBirthday;
}
}
public sealed partial class ReleaseScenario_MessageName : CodeActivity
{
protected override void Execute(CodeActivityContext executionContext)
{
IWorkflowContext context = executionContext.GetExtension<IWorkflowContext>();
//Set the variable
MessageName.Set(executionContext, context.MessageName);
}
//Define the properties
[Output("Message Name")]
public OutArgument<string> MessageName { get; set; }
}
/// <summary>
/// Calculates the credit score based on the SSN and name.
/// </summary>
/// <remarks>
/// This depends on a custom entity called Loan Application and customizations to Contact.
///
/// Loan Application requires the following properties:
/// <list>
/// <item>Schema Name: new_loanapplication</item>
/// <item>Attribute: new_loanapplicationid as the primary key</item>
/// <item>Attribute: new_creditscore of type int with min of 0 and max of 1000 (if it is to be updated)</item>
/// <item>Attribute: new_loanamount of type money with default min/max</item>
/// <item>Customize the form to include the attribute new_loanapplicantid</item>
/// </list>
///
/// Contact Requires the following customizations
/// <list>
/// <item>Attribute: new_ssn as nvarchar with max length of 15</item>
/// <item>One-To-Many Relationship with these properties:
/// <list>
/// <item>Relationship Definition Schema Name: new_loanapplicant</item>
/// <item>Relationship Definition Related Entity Name: Loan Application</item>
/// <item>Relationship Atttribute Schema Name: new_loanapplicantid</item>
/// <item>Relationship Behavior Type: Referential</item>
/// </list>
/// </item>
/// </list>
///
/// The activity takes, as input, a EntityReference to the Loan Application and a boolean indicating whether new_creditscore should be updated to the credit score.
/// </remarks>
/// <exception cref=">ArgumentNullException">Thrown when LoanApplication is null</exception>
/// <exception cref=">ArgumentException">Thrown when LoanApplication is not a EntityReference to a LoanApplication entity</exception>
public sealed partial class RetrieveCreditScore : CodeActivity
{
private const string CustomEntity = "new_loanapplication";
protected override void Execute(CodeActivityContext executionContext)
{
//Check to see if the EntityReference has been set
EntityReference loanApplication = this.LoanApplication.Get(executionContext);
if (loanApplication == null)
{
throw new InvalidOperationException("Loan Application has not been specified", new ArgumentNullException("Loan Application"));
}
else if (loanApplication.LogicalName != CustomEntity)
{
throw new InvalidOperationException("Loan Application must reference a Loan Application entity",
new ArgumentException("Loan Application must be of type Loan Application", "Loan Application"));
}
//Retrieve the CrmService so that we can retrieve the loan application
IWorkflowContext context = executionContext.GetExtension<IWorkflowContext>();
IOrganizationServiceFactory serviceFactory = executionContext.GetExtension<IOrganizationServiceFactory>();
IOrganizationService service = serviceFactory.CreateOrganizationService(context.InitiatingUserId);
//Retrieve the Loan Application Entity
Entity loanEntity;
{
//Create a request
RetrieveRequest retrieveRequest = new RetrieveRequest();
retrieveRequest.ColumnSet = new ColumnSet(new string[] { "new_loanapplicationid", "new_loanapplicantid" });
retrieveRequest.Target = loanApplication;
//Execute the request
RetrieveResponse retrieveResponse = (RetrieveResponse)service.Execute(retrieveRequest);
//Retrieve the Loan Application Entity
loanEntity = retrieveResponse.Entity as Entity;
}
//Retrieve the Contact Entity
Entity contactEntity;
{
//Create a request
EntityReference loanApplicantId = (EntityReference)loanEntity["new_loanapplicantid"];
RetrieveRequest retrieveRequest = new RetrieveRequest();
retrieveRequest.ColumnSet = new ColumnSet(new string[] { "fullname", "new_ssn", "birthdate" });
retrieveRequest.Target = loanApplicantId;
//Execute the request
RetrieveResponse retrieveResponse = (RetrieveResponse)service.Execute(retrieveRequest);
//Retrieve the Loan Application Entity
contactEntity = retrieveResponse.Entity as Entity;
}
//Retrieve the needed properties
string ssn = (string)contactEntity["new_ssn"];
string name = (string)contactEntity[ContactAttributes.FullName];
DateTime? birthdate = (DateTime?)contactEntity[ContactAttributes.Birthdate];
int creditScore;
//This is where the logic for retrieving the credit score would be inserted
//We are simply going to return a random number
creditScore = (new Random()).Next(0, 1000);
//Set the credit score property
this.CreditScore.Set(executionContext, creditScore);
//Check to see if the credit score should be saved to the entity
//If the value of the property has not been set or it is set to true
if (null != this.UpdateEntity && this.UpdateEntity.Get(executionContext))
{
//Create the entity
Entity updateEntity = new Entity(loanApplication.LogicalName);
updateEntity["new_loanapplicationid"] = loanEntity["new_loanapplicationid"];
updateEntity["new_creditscore"] = this.CreditScore.Get(executionContext);
//Update the entity
service.Update(updateEntity);
}
}
//Define the properties
[Input("Loan Application")]
[ReferenceTarget(CustomEntity)]
public InArgument<EntityReference> LoanApplication { get; set; }
[Input("Update Entity's Credit Score")]
[Default("true")]
public InArgument<bool> UpdateEntity { get; set; }
[Output("Credit Score")]
[AttributeTarget(CustomEntity, "new_creditscore")]
public OutArgument<int> CreditScore { get; set; }
}
}
Siehe auch
IWorkflowContext
Benutzerdefinierte Workflowaktivitäten (Workflowassemblys)
Beispiel: Berechnen Sie mit einer benutzerdefinierten Workflowaktivität einen Kreditscore
Einer benutzerdefinierten Workflowaktivität Metadaten hinzufügen
Microsoft Dynamics 365
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