一个枚举，用于指定对实体执行的更新操作。An enumeration used to specify the update operations that were performed on an entity.
此枚举有一个 FlagsAttribute 属性，允许按位组合成员值。
public enum class UpdateOperations
[System.Flags] public enum UpdateOperations
type UpdateOperations =
Public Enum UpdateOperations
添加了实体。The entity was added.
修改了实体。The entity was modified.
删除了实体。The entity was deleted.
未对资源执行任何操作。No operations were performed on the resource.
此枚举用于拦截器, 用于确定在存储实体之前对其执行的更改类型。This enumeration is used on interceptors to determine what kind of changes were performed on entities before they were saved.