Exemple : calculer un score de crédit avec une activité de workflow personnalisée
Date de publication : janvier 2017
S’applique à : Dynamics 365 (online), Dynamics 365 (on-premises), Dynamics CRM 2016, Dynamics CRM Online
Cet exemple de code est pour Microsoft Dynamics 365 (Online et local).Téléchargez le package Kit de développement logiciel (SDK) de Microsoft Dynamics CRM. Il se trouve à l'emplacement suivant dans le package de téléchargement :
SampleCode\CS\Process\CustomWorkflowActivities\TestNet4Activity\ReleaseISVActivities.cs
Configuration requise
Les personnalisations suivantes doivent exister pour cette activité de workflow personnalisée pour fonctionner :
Nom de schéma d'entité : new_loanapplication
Attribut : new_loanapplicationid comme clé primaire
Attribut : new_creditscore du type int avec 0 comme valeur minimale et 1 000 comme valeur maximale (si une mise à jour est nécessaire)
Attribut : new_loanamount de type devise avec valeur par défaut min/max
Personnaliser le formulaire pour inclure l'attribut new_loanapplicantid
L'entité de contact doit avoir les personnalisations suivantes :
Attribut : new_ssn comme Une seule ligne de texte avec une longueur maximale de 15
Relation un-à-plusieurs avec ces propriétés :
Nom du schéma de définition de la relation : new_loanapplicant
Nom d'affichage de l'entité liée à la définition de la relation : demande de prêt
Nom du schéma d'attribut de la relation : new_loanapplicantid
Type de comportement de la relation : référentiel
Démontre
L'exemple suivant d'activité de workflow calcule le score de crédit basé sur le numéro de sécurité sociale (NSS) et le nom.
Exemple
/// <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; }
}
Voir aussi
Activités de workflow personnalisées (assemblys de workflow)
Ajouter des métadonnées à une activité de workflow personnalisée
Microsoft Dynamics 365
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