从相交实体 D365 C# 获取相关实体

Question

I've retrieved an intersect entity and the two entities related to it.

I've linked the entities to the query (to my belief).

When I run the code, all intersect entities appear, but I can't figure out how to get any data from them, even the name of the name.

Please see below code: .

private static EntityCollection GetOpportunityAndInstallationSiteIntersectEntity(IOrganizationService service)

        var installationSite = "csp_installationsite";
                    var opportunity = "opportunity";
                    var relationshipName = "csp_opportunity_csp_installationsite";
        
                    var relationshipQuery = new QueryExpression(installationSite)
                    {
                        ColumnSet = new ColumnSet(true)
                    };
        
                    var linkInstallationSite = new LinkEntity(installationSite, relationshipName, "csp_installationsiteid","csp_installationsiteid" ,JoinOperator.Inner);
                    var linkOpportunity = new LinkEntity(opportunity, relationshipName, "opportunityid", "opportunityid" ,JoinOperator.Inner);
        
                    linkInstallationSite.LinkEntities.Add(linkOpportunity);
        
                    relationshipQuery.LinkEntities.Add(linkInstallationSite);
                    var RelationshipCollection = service.RetrieveMultiple(relationshipQuery);
                    Console.WriteLine("Retrieved {0} Intersect Entities", RelationshipCollection.Entities.Count);
        
        foreach (Entity IS in RelationshipCollection.Entities)
                    {
                        Console.WriteLine("Intersect Entity:", IS["csp_name"]);
                    }
        
        return RelationshipCollection;
    


    I'd just like to know how I can get the records related to the intersect. 
    Lets call an entity A, I want to deprecate it, but it's related to Entity B in a N:N relationship.
    
    I've created a new entity, which is related to entity A in PowerAutomate.

I want all of Entity B to now be related to this Entity I made in PowerAutomate.

Any help is appreciated.

Answer 1

When I ran your code I could get access to the Installation Site attributes and I just modified it slightly to get the all the attributes from the opportunity.

The code below loops through the name attributes of both the Opportunity and Installation Site.

private static EntityCollection GetOpportunityAndInstallationSiteIntersectEntity(IOrganizationService service)
{
    var installationSite = "csp_installationsite";
    var opportunity = "opportunity";
    var relationshipName = "csp_opportunity_csp_installationsite";

    var relationshipQuery = new QueryExpression(installationSite)
    {
        ColumnSet = new ColumnSet(true)
    };

    var linkInstallationSite = relationshipQuery.AddLink(relationshipName, "csp_installationsiteid", "csp_installationsiteid", JoinOperator.Inner);
    var linkOpportunity = linkInstallationSite.AddLink(opportunity, "opportunityid", "opportunityid", JoinOperator.Inner);
    linkOpportunity.EntityAlias = "opp";
    linkOpportunity.Columns.AllColumns = true;
    var RelationshipCollection = service.RetrieveMultiple(relationshipQuery);

    foreach (Entity IS in RelationshipCollection.Entities)
    {
        Console.WriteLine($"Intersect Entity: {IS["csp_name"]} {((AliasedValue)IS["opp.name"]).Value}");
    }

    return RelationshipCollection;
}

From there you will need to associate the records to the new entity and dissociate the old one