帶命名參數的nhibernate hql

Question

我已經使用Castel Active Record實現了一個搜索功能。我認爲代碼是很簡單，但我一直得到

NHibernate.QueryParameterException：無法找到名爲參數[searchKeyWords]

錯誤。有人能告訴我哪裏出了問題嗎？太感謝了。

public List<Seller> GetSellersWithEmail(string searchKeyWords) 
     { 
      if (string.IsNullOrEmpty(searchKeyWords)) 
      { 
       return new List<Seller>(); 
      } 
      string hql = @"select distinct s 
          from Seller s 
          where s.Deleted = false 
            and (s.Email like '%:searchKeyWords%')"; 

      SimpleQuery<Seller> q = new SimpleQuery<Seller>(hql); 
      q.SetParameter("searchKeyWords", searchKeyWords); 
      return q.Execute().ToList(); 
     } 

Answer 1

爲什麼不傳遞％字符的參數？

string hql = @"select distinct s 
          from Seller s 
          where s.Deleted = false 
            and (s.Email like :searchKeyWords)"; 
    SimpleQuery<Seller> q = new SimpleQuery<Seller>(hql); 
    q.SetParameter("searchKeyWords", "%"+searchKeyWords+"%"); 
    return q.Execute().ToList();