Linq包括不工作

Question

我有这个linq表达式

ActionPlan
    .Include(x => x.Goal)
    .Include(x => x.Responsibles)
    .Include(x => x.Goal.EducationalPlan)
    .AsNoTracking()
    .Where(x => x.State == State.Active && x.Goal.State == State.Active && x.Goal.EducationalPlan.State == State.Active)
    .Where(x => x.Responsibles.Any(r => r.PersonId == pes_id))
    .Distinct()
    .Select(x => x.Goal)
    .ToList();

EducationalPlan的包含不起作用，为什么？所有其他工作正常， EducationPlan是一个不是列表的对象。

Answer 1

对于多个级别，你应该这样：

ActionPlan
    .Include(x => x.Goal)
    .Include(x => x.Responsibles)
    .Include(x => x.Goal.Select(y => y.EducationalPlan))
    .AsNoTracking()
    .Where(x => x.State == State.Active && x.Goal.State == State.Active && x.Goal.EducationalPlan.State == State.Active)
    .Where(x => x.Responsibles.Any(r => r.PersonId == pes_id))
    .Distinct()
    .Select(x => x.Goal)
    .ToList();

或试试这个：

ActionPlan
    .Include(x => x.Goal)
    .Include(x => x.Responsibles)
    .Include("Goal.EducationalPlan")
    .AsNoTracking()
    .Where(x => x.State == State.Active && x.Goal.State == State.Active && x.Goal.EducationalPlan.State == State.Active)
    .Where(x => x.Responsibles.Any(r => r.PersonId == pes_id))
    .Distinct()
    .Select(x => x.Goal)
    .ToList();