服务插件中给仓库审核人(多选基础资料)赋值

 public override void BeginOperationTransaction(BeginOperationTransactionArgs e)
        {
            base.BeginOperationTransaction(e);
            if (e.DataEntitys != null && e.DataEntitys.Length > 0)
            {
                for (int i = 0; i < e.DataEntitys.Length; i++)
                {
                    DynamicObject dataEntity = e.DataEntitys[i];
                    string DocumentStatus = dataEntity["DocumentStatus"].GetString();
                    if (DocumentStatus != "C")//非已审核
                    {
                        DynamicObjectCollection F_VTR_AuditUser = dataEntity["F_VTR_AuditUser"] as DynamicObjectCollection;
                        if (F_VTR_AuditUser.Count == 0)//仓库审核人为空
                        {
                            DynamicObjectCollection BillEntry = dataEntity["BillEntry"] as DynamicObjectCollection;
                            if (BillEntry.Count > 0)
                            {
                                DynamicObject StockId = BillEntry[0]["StockId"] as DynamicObject;
                                if (StockId != null)
                                {
                                    MulBaseDataField field = this.BusinessInfo.GetField("F_VTR_AuditUser") as MulBaseDataField;
                                    DynamicObjectCollection wsAuditUser = StockId["F_VTR_AuditUser"] as DynamicObjectCollection;//仓库的仓库审核人
                                    foreach (var item in wsAuditUser)
                                    {
                                        DynamicObject obj = new DynamicObject(F_VTR_AuditUser.DynamicCollectionItemPropertyType);
                                        obj["PKId"] = new SequenceReader(this.Context).GetSequence<long>(field.TableName, 1).First();
                                        obj["F_VTR_AuditUser_id"] = item["F_VTR_AuditUser_id"];
                                        obj["F_VTR_AuditUser"] = item["F_VTR_AuditUser"];
                                        F_VTR_AuditUser.Add(obj);
                                    }
                                }
                            }
                        }
                    }
                }
            }

        }