c# - 如何使用 QueryOver 从内连接中按列排序？

Question

假设我有一个查询，例如:

return NHibernateHelper.Session.QueryOver<SomeEntity>()
    .JoinQueryOver(x => x.Entity2)
    .JoinQueryOver(x => x.Entity3)
    .Where(x = x.Id > 10)
    .OrderBy( ????  )
    .List<SomeEntity>();

现在假设我想按 Entity3.SortOrder 列排序，我该怎么做？

Answer 1

Entity2 e2Alias = null;
Entity3 e3Alias = null;
SomeEntity s = null;
return NHibernateHelper.Session.QueryOver<SomeEntity>()
    .JoinAlias(() => s, () => e2Alias.SomeEntityReference) //here you need to specify the other  side of the relation in the other entity that refernces th SomeEntity
    .JoinAlias(() => s, () => e3Alias.SomeEntityReference)
    .Where(() => s.Id > 10)
    .OrderBy( () => e3Alias.SortOrder).Asc //or Desc
    .List<SomeEntity>();