c# - 实体不会从 Azure 表中删除

Question

当我尝试删除实体时，Visual Studio 在“serviceContext.DeleteObject(entity);”行上不断崩溃，并显示“上下文当前未跟踪实体”。有谁知道为什么以及如何解决它？

    CloudTableQuery<ScheduleEntity> query = scheduleManNot.retrieveSchedule();

            //Checks every entry 
            foreach (ScheduleEntity entity in query)
            {
                comparison = System.DateTime.Compare(entity.eventTime, time);

                if (comparison <= 0)
                {
                    changeConfirmation = scheduleManNot.changeInstanceCount(entity.subscriptionID, entity.amount, entity.serviceName);

                    if (changeConfirmation == false)
                    {
                        Console.WriteLine("Configuration Change failed");
                    }

                    if (changeConfirmation == true)
                    {

                        Console.WriteLine("Configuration Change Succeeded");
                        Console.WriteLine(entity.serviceName + " had its instance count changed to " + entity.amount); 


                       serviceContext.AttachTo("schedule", entity, "*");
                       serviceContext.DeleteObject(entity);

                        //Submit the operation to the table service
                        serviceContext.SaveChangesWithRetries();

Answer 1

由于您是通过查询接收实体，因此无需附加实体。因此，我认为这里根本不需要 Attachto，正如您在评论中所述。如果需要删除未附加的实体，可以先附加它，然后将其标记为已删除。