我有这个:
public static class Domain
{
private const string sessionKey = "NHib.SessionKey";
private static ISessionFactory sessionFactory;
public static ISession CurrentSession
{
get
{
return GetSession(true);
}
}
static Domain()
{
}
public static void Init()
{
sessionFactory = new Configuration().Configure("Nhibernate.cfg.xml").BuildSessionFactory();
}
public static void Close()
{
ISession currentSession = GetSession(false);
if (currentSession != null)
{
currentSession.Close();
}
}
private static ISession GetSession(bool getNewIfNotExists)
{
ISession currentSession;
if (HttpContext.Current != null)
{
HttpContext context = HttpContext.Current;
currentSession = context.Items[sessionKey] as ISession;
if (currentSession == null && getNewIfNotExists)
{
currentSession = sessionFactory.OpenSession();
context.Items[sessionKey] = currentSession;
}
}
else
{
currentSession = CallContext.GetData(sessionKey) as ISession;
if (currentSession == null && getNewIfNotExists)
{
currentSession = sessionFactory.OpenSession();
CallContext.SetData(sessionKey, currentSession);
}
}
return currentSession;
}
}
public class Question
{
public virtual int Id { get; protected set; }
public virtual string Text { get; set; }
public virtual string Answer1 { get; set; }
public virtual string Answer2 { get; set; }
public virtual string Answer3 { get; set; }
public virtual string Answer4 { get; set; }
public virtual int NumberOfRight { get; set; }
public override string ToString()
{
return this.Text;
}
}
我可以使用数据库中的任何问题进行CRUD操作。
但我需要展示所有问题,如何获得它们?
在我的数据库中,问题有id:1,2,3,100。我不认为,通过所有可能的Id - 是可以接受的......
答案 0 :(得分:24)
您可以使用命名空间Query<T>
中的扩展方法NHibernate.Linq
,也可以使用ISession.QueryOver<T>
:
var allQuestions = session.Query<Question>().ToList();
// or
var allQuestions = session.QueryOver<Question>().List();