Unexpected row count: 0; expected: 1

NHibernate对多表连接时,插入数据时报错
説明: 現在の Web 要求を実行中に、ハンドルされていない例外が発生しました。エラーに関する詳細および例外の発生場所については、スタックトレースを参照してください。

例外の詳細: NHibernate.StaleStateException: Unexpected row count: 0; expected: 1

ソースエラー:

行 112:                catch (Exception ex)
行 113:                {
行 114:                    throw ex;
行 115:                }
行 116:            }

ソースファイル: c:\Documents and Settings\zhangxiuyan\My Documents\Visual Studio 2005\WebSites\Web\UserManager.aspx.cs    行: 114

スタックトレース:

[StaleStateException: Unexpected row count: 0; expected: 1]
   NHibernateWebDemo.Web.UserManager.wbtn_Save_Click(Object sender, EventArgs e) in c:\Documents and Settings\zhangxiuyan\My Documents\Visual Studio 2005\WebSites\Web\UserManager.aspx.cs:114
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +96
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +116
   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +31
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +32
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +72
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3839

表结构为Groupu   GroupID PK
                 GroupName
        Users    LogonID PK
       Name varchar(40),
       Password varchar(20),
       EmailAddress varchar(40) ,
      LastLogon datetime
                 GroupID  FK

user.hbm.xml文件如下

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">
<class name="NHibernateWebDemo.Model.User, NHibernateWebDemo.Model" table="Users">
<id name="Id" type="String" unsaved-value="null">
<column name="LogonID" length="20" sql-type="varchar" not-null="true" unique="true" index="PK__Users__2C3393D0"/>
<generator class="assigned" />
</id>
<property name="UserName" type="String">
<column name="Name" length="40" sql-type="varchar" not-null="false"/>
</property>
<property name="Password" type="String">
<column name="Password" length="20" sql-type="varchar" not-null="false"/>
</property>
<property name="EmailAddress" type="String">
<column name="EmailAddress" length="40" sql-type="varchar" not-null="false"/>
</property>
<property name="LastLogon" type="DateTime">
<column name="LastLogon" sql-type="datetime" not-null="false"/>
</property>
<many-to-one name="Groupu" class="NHibernateWebDemo.Model.Groupu, NHibernateWebDemo.Model">
<column name="GroupID" length="20" sql-type="varchar" not-null="true"/>
</many-to-one>
</class>
</hibernate-mapping>

USER.CS文件如下
using System;
using System.Collections;

namespace NHibernateWebDemo.Model
{
#region User

/// <summary>
/// User object for NHibernate mapped table 'Users'.
/// </summary>
public class User
{
#region Member Variables

protected string _id;
protected string _name;
protected string _password;
protected string _emailAddress;
protected DateTime _lastLogon;
protected Groupu _groupu;

#endregion

#region Constructors

public User() { }

public User( string name, string password, string emailAddress, DateTime lastLogon, Groupu groupu )
{
this._name = name;
this._password = password;
this._emailAddress = emailAddress;
this._lastLogon = lastLogon;
this._groupu = groupu;
}

#endregion

#region Public Properties

        public virtual string Id
{
get {return _id;}
set
{
if ( value != null && value.Length > 20)
throw new ArgumentOutOfRangeException("Invalid value for Id", value, value.ToString());
_id = value;
}
}

        public virtual string UserName
{
get { return _name; }
set
{
if ( value != null && value.Length > 40)
throw new ArgumentOutOfRangeException("Invalid value for Name", value, value.ToString());
_name = value;
}
}

        public virtual string Password
{
get { return _password; }
set
{
if ( value != null && value.Length > 20)
throw new ArgumentOutOfRangeException("Invalid value for Password", value, value.ToString());
_password = value;
}
}

        public virtual string EmailAddress
{
get { return _emailAddress; }
set
{
if ( value != null && value.Length > 40)
throw new ArgumentOutOfRangeException("Invalid value for EmailAddress", value, value.ToString());
_emailAddress = value;
}
}

        public virtual DateTime LastLogon
{
get { return _lastLogon; }
set { _lastLogon = value; }
}

        public virtual Groupu Groupu
{
get { return _groupu; }
set { _groupu = value; }
}

#endregion
}
#endregion
}
Groupu.hbm.xml文件如下
<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">
<class name="NHibernateWebDemo.Model.Groupu, NHibernateWebDemo.Model" table="Groupu">
<id name="GroupID" type="String" unsaved-value="null">
<column name="GroupID" length="20" sql-type="varchar" not-null="true" unique="true" index="PK_Groupu"/>
<generator class="assigned" />
</id>
<property name="GroupName" type="String">
<column name="GroupName" length="20" sql-type="varchar" not-null="true"/>
</property>
<bag name="Userses" inverse="true" lazy="true" cascade="all-delete-orphan">
<key column="GroupID"/>
<one-to-many class="NHibernateWebDemo.Model.User, NHibernateWebDemo.Model"/>
</bag>
</class>
</hibernate-mapping>

Groupu.cs文件如下
using System;
using System.Collections;

namespace NHibernateWebDemo.Model
{
#region Groupu

/// <summary>
/// Groupu object for NHibernate mapped table 'Groupu'.
/// </summary>
public class Groupu
{
#region Member Variables

protected string _id;
protected string _groupName;
protected IList _userses;

#endregion

#region Constructors

public Groupu() { }

public Groupu( string groupName )
{
this._groupName = groupName;
}

#endregion

#region Public Properties

        public virtual string GroupID
{
get {return _id;}
set
{
if ( value != null && value.Length > 20)
throw new ArgumentOutOfRangeException("Invalid value for Id", value, value.ToString());
_id = value;
}
}

        public virtual string GroupName
{
get { return _groupName; }
set
{
if ( value != null && value.Length > 20)
throw new ArgumentOutOfRangeException("Invalid value for GroupName", value, value.ToString());
_groupName = value;
}
}

        public virtual IList Userses
{
get
{
if (_userses==null)
{
_userses = new ArrayList();
}
return _userses;
}
set { _userses = value; }
}

#endregion
}
#endregion
}
汗一个，，初学NHibernate，自己对比了很久，可能配置文件有问题，可不知道哪出问题了．网上似乎也没有见到有１对多表联的例子，研究过这东东的高手来看一下，不胜感激．

6 个解决方案

#1

沙发
外包？

#2

是的啊,,,,唉,高手没有回答我啊,,
继续等

#3

欢迎访问www.chinadacs.cn

#4

欢迎访问 http://www.chinadacs.cn

#5

asdfsadf

#6

http://www.cnblogs.com/jillzhang/archive/2007/03/23/685750.html
这里有配置详解。

#1