在没有早期绑定实体的CRM中创建ActivityParty

如果我是对的，您不需要使用EntityCollection，而是使用Entity 数组

创建一个具有延迟绑定语法的电话将是：

Entity from1 = new Entity("activityparty");
Entity to1 = new Entity("activityparty");
Entity to2 = new Entity("activityparty"); // two contacts inside the to field
from1["partyid"]= new EntityReference("systemuser", userId);
to1["partyid"]= new EntityReference("contact", contact1Id);
to2["partyid"]= new EntityReference("contact", contact2Id);
Entity phonecall = new Entity("phonecall");
phonecall["from"] = new Entity[] { from1 };
phonecall["to"] = new Entity[] { to1, to2 };
// other phonecall fields
Guid phonecallId = service.Create(phonecall);

尽管我对答案投了赞成票，但我对ActivityParty的序列化也有类似的问题。我找到了一个不需要您放弃早期绑定实体的解决方案。

你需要做的是这样的事情：

IEnumerable<ActivityParty> party = new [] { new ActivityParty { PartyId="", EntityLogicalName="..." } }; 
phonecall["to"] = new EntityCollection(party.Select(x => x.ToEntity<Entity>).ToList());

(我没有测试代码，而是在空中编写的，但你应该能感受到这个想法(

我投票给TrN，因为我在寻找任何类型的例子，这是我能找到的唯一早期绑定的例子。

他的例子实际上帮助我创建了一个PhoneCall实体，该实体的属性"From"指向实际发出呼叫的Lead。我从未完全理解IEnumerable<ActivityParty>枚举器。多亏了TrN，我对它的理解足以使用它。

这是我关于PhoneCall活动的代码，我已经测试过了，它是有效的。每次现有潜在客户打来电话。保存PhoneCall活动时，会将正确的Attribute值链接到正确的Lead。

IEnumerable<ActivityParty> party = new[] { new ActivityParty { LogicalName = ActivityParty.EntityLogicalName , PartyId = eref2  } };

                    Console.WriteLine("Logging activity to {0}", firstName);
                    Console.WriteLine("... 'n" );
                    PhoneCall newCall = new PhoneCall { Description = "Missed phone call from this lead", DirectionCode = true, RegardingObjectId = eref2,
                        Subject = "Missed Call", PhoneNumber = MissedCall, OwnerId = User, From = party };

                    Guid newCallId = service.Create(newCall);
                Console.WriteLine("Log successfully created 'n 'n ");

正如我所说，对于Kirschi来说，这不是真正的解决方案，因为他要求没有任何上下文。但是，任何想要/可以使用所提供的上下文并好奇IEnumerable<ActivityParty>是如何工作的人，这可能会帮助他们创建一个适当的PhoneCall活动。

以下是相同的工作代码。如果有人遇到任何问题，请随时联系。

private static void fetchRelatedPhoneCalls(IPluginExecutionContext context, IOrganizationService service, Guid yourGuid, Entity opp)
{
    string strFetchPhoneCalls = string.Format(FetchQuery.bringFetchQueryForPhoneCalls(),yourGuid);
    EntityCollection entPhoneCalls = (EntityCollection)service.RetrieveMultiple(new FetchExpression(strFetchPhoneCalls));
    if (entPhoneCalls != null && entPhoneCalls.Entities.Count > 0)
    {
        for (int i = 0; i < entPhoneCalls.Entities.Count; i++)
        {
            Entity entPhoneCall = (Entity)entPhoneCalls.Entities[i];
            string[] strAttributesPCtoRemove = new string[] { "createdon", "createdbyname", "createdby"
                            ,"modifiedon", "modifiedby" ,"regardingobjectid","owninguser"
                            ,"activityid", "instancetypecode", "activitytypecode" // PhoneCall Skip
            };
            Entity entNewPhoneCall = this.CloneRecordForEntity("phonecall", entPhoneCall, strAttributesPCtoRemove);
            entNewPhoneCall["regardingobjectid"] = new EntityReference(context.PrimaryEntityName, context.PrimaryEntityId);
            entNewPhoneCall["to"] = this.getActivityObject(entNewPhoneCall, "to");
            entNewPhoneCall["from"] = this.getActivityObject(entNewPhoneCall, "from");
            service.Create(entNewPhoneCall);
        }
    }
}
private static Entity CloneRecordForEntity(string targetEntityName, Entity sourceEntity, string[] strAttributestoRemove)
{
    Entity clonedEntity = new Entity(targetEntityName);
    AttributeCollection attributeKeys = sourceEntity.Attributes;
    foreach (string key in attributeKeys.Keys)
    {
        if (Array.IndexOf(strAttributestoRemove, key) == -1)
        {
            if (!clonedEntity.Contains(key))
            {
                clonedEntity[key] = sourceEntity[key];
            }
        }
    }
    return clonedEntity;
}
private static EntityCollection getActivityObject(Entity entNewActivity, string activityFieldName)
{
    Entity partyToFrom = new Entity("activityparty");
    partyToFrom["partyid"] = ((EntityReference)((EntityCollection)entNewActivity[activityFieldName]).Entities[0].Attributes["partyid"]);
    EntityCollection toFrom = new EntityCollection();
    toFrom.Entities.Add(partyToFrom);
    return toFrom;
}