如何通过向Nhibernate 3.3.3.4001中的Session.Delete(...)发送查询来删除对象 [英] How delete object by sending query to Session.Delete(...) in Nhibernate 3.3.3.4001

问题描述

我有以下代码块，最终应删除一条记录.

I have the following block of code which should ultimately delete a record.

long id = 81;
SessionInstance.Delete("from Core.Domain.Model.Person as obj where obj.Id =:id", id, NHibernateUtil.Int64);

但是在将Nhibernate版本升级到3.3.3.4001之后，此消息会出现以下异常:

But after upgrade Nhibernate version to 3.3.3.4001, this code has a exception by this message :

字典中不存在给定的键.

The given key was not present in the dictionary.

为什么?

推荐答案

如果要使用位置参数(需要使用)，语法会有所不同:

If you want to use positional parameters (which you need to), the syntax is a bit different:

session.Delete("from Product p where p.ProductId = ?", id, NHibernateUtil.Int32);

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