NHibernate.ISession.CreateCriteria（typeof运算（BusinessObject的））是{}

Question

在我的代码，当会话是打开的，并连接，调用列表后（）方法：

 using (ISession NSession = SessionProvider.GetSession()) 
     { 
      ICriteria CriteriaQuery = 
       NSession.CreateCriteria(typeof(Application)); 
      return (List<Application>) CriteriaQuery.List<Application>(); 
     } 

不会检索任何数据而只是一个 “{}”，这是应用类和它的映射XML代码：

public class Application 
{ 
    private string _name; 
    private Developer _developer; 
    private int _id; 
    private List<Bug> _bugs; 

    public Application() 
    { 
     _bugs = new List<Bug>(); 
    } 

    public virtual int ApplicationId 
    { 
     get { return _id; } 
     set { _id = value; } 
    } 

    public virtual Developer Developer 
    { 
     get { return _developer; } 
     set { _developer = value; } 
    } 

    public virtual string Name 
    { 
     get { return _name; } 
     set { _name = value; } 
    } 

    public virtual List<Bug> Bugs 
    { 
     get { return _bugs; } 
     set { _bugs = value; } 
    } 
} 

和：

<?xml version="1.0" encoding="utf-8" ?> 
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" namespace="BugTracker.Model" 
        assembly="BugTracker"> 
    <class name="Application" table="Applications" lazy="false"> 
    <id name="ApplicationId" column ="ApplicationId" type="int" unsaved-value ="0"> 
     <generator class ="native"></generator> 
    </id> 

    <property name ="Name" column="Name"/> 

    <component access ="field.camelcase-underscore" name ="Developer" 
       class="Developer"> 
     <property access ="field.camelcase-underscore" 
       column ="DeveloperFirstName" name="FirstName"/> 
     <property access ="field.camelcase-underscore" 
       column="DeveloperLastName" name="LastName"/> 
    </component> 

    <bag cascade="all-delete-orphan" 
      inverse ="true" 
      name ="Bugs" 
      lazy="false" 
      access ="field.camelcase-underscore"> 
     <key column ="ApplicationId"/> 
     <one-to-many class ="Bug"/> 
    </bag> 

    </class> 
</hibernate-mapping> 

Answer 1

你肯定不要在return (List<Application>) CriteriaQuery.List<Application>();上获得例外？

据我所知，nhibernate需要集合的接口，所以它可以插入自己的更改跟踪。你可以尝试和改变List<Bug>到IList<Bug>