小编Phi*_*oyd的帖子

我需要一些帮助.如何访问当前经过身份验证的用户/ ClaimsPrincipal.在过去,我会使用HttpContext.Current,但现在似乎有点不对劲.

给定一个对象列表如下:

Instance
 - InstanceID

Version
 - VersionID
 - List<Instance> Instances

Activity
 - ActivityID 
 - List<Version> Versions

我想生成一个这样的列表:

Activity
 - ActivityID
 - List<Instance> Instances

目前停留在:

(from activity in activities
 select new {
            activity.ActivityID,
            VersionGroup = (from version in activity.Versions
                            group version by version.ActivityID into versionGroup
                            select versionGroup)
            })

只是不确定如何进入实例级别.

(from activity in activities
 select new { activity.ActivityID,
              Instances = activity.ActivityVersions.SelectMany(v => v.ActivityInstances).AsEnumerable() });