Alias在此示例的QueryOver中加入

Question

Person類具有Identity類的關聯（一對一）FirstName和LastName是Person類的屬性Sex和BirthDate是Identity類的屬性。

我有一個SQL查詢作爲下面的例子：

select FirstName,LastName,Identity.Sex,Identity.BirthDate from Person_Person as Person 
inner join Person_Identity as Identity on Person.Id = Identity.Person_id_fk 
WHERE FirstName like '%jack%' and LastName like '%smit%' 

我將它轉換QueyOver。

var q = SessionInstance.QueryOver<Person>(); 

if (!String.IsNullOrEmpty(searchPersonDto.FirstName)) //necessary 
    q = q.Where(p => p.FirstName.IsLike(searchPersonDto.FirstName, MatchMode.Anywhere)); 

if (!String.IsNullOrEmpty(searchPersonDto.LastName)) //necessary 
    q = q.Where(p => p.LastName.IsLike(searchPersonDto.LastName, MatchMode.Anywhere)); 

Person aliasPerson = null; 
q = q.SelectList(list => list 
    .Select(p => p.Id).WithAlias(() => aliasPerson.Id) 
    .Select(p => p.FirstName).WithAlias(() => aliasPerson.FirstName) 
    .Select(p => p.LastName).WithAlias(() => aliasPerson.LastName) 
    .Select(p => p.Identity.Sex).WithAlias(() => aliasPerson.Identity.Sex) 
    .Select(p => p.Identity.BirthDate).WithAlias(() => aliasPerson.Identity.BirthDate)) 
    .TransformUsing(Transformers.AliasToBean<Person>()); 

q.List<Person>(); 

但加入此查詢是不正確的。它通過此消息拋出一個異常： could not resolve property: Identity.Sex of: Domain.Entities.Person

我應該如何加入身份認證？

更新時間：通過QueryOver類似於上面的查詢由LINQ的添加類似的LINQ查詢

var q = SessionInstance.Query<Person>() 
     .Where(p => p.FirstName == searchPersonDto.FirstName) 
     .Select(p => new Person(p.Id) 
     {    
      FirstName = p.FirstName, 
      LastName = p.LastName, 
      Identity = new Identity() 
      { 
       Sex = p.PersonIdentity.Sex, 
       BirthDate = p.Identity.BirthDate 
      } 
     }).ToList<Person>(); 

我需要一個查詢。