I have 2 class: Parent, Child
Parent uses one-to-many to call a Child bag
Child uses many-to-one to call a Parent infor.
I write code in C#, .NET 2005.
When data loaded, it works success, both Parent and Child get data together is correct.
But when I insert a Child, this Child cannot get infor of Parent.
Here is a sample :
1. Choose Parent with ID = 2, Name = 'Animal'
2. Input Child's Name with Name = 'Dog'
3. Click Save. (success, data inserted into database)
4. Get data use List Object (List<Child>) listChild
5. Get Child just insert : Child [info] = listChild[1];
6.
[info] has ParentID = 2 but InfoParent class is null
When I stop program and start again, it will works normal.
I don't understand what is nHibernate doing?
Can you show me an idea to solve this problem?
This is my code :
Class Parent :
Quote:
public class Parent : DomainObject<Int32>
{
public Parent()
{
}
private string _Name;
public virtual string Name
{
get { return _Name; }
set { _Name = value; }
}
private IList<Child> _ListChild;
public virtual IList<Child> ListChild
{
get { return _ListChild; }
set { _ListChild = value; }
}
Quote:
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="RedSea.CMS.Model" namespace="RedSea.CMS.Model">
<class name="Parent" table="Parent" >
<id name="ID" type="System.Int32" column="ParentID" unsaved-value="0">
<generator class="identity" />
</id>
<property name="Name" column="Name" type="System.String" not-null="false" />
<bag name="ListChild">
<key column="ParentID" />
<one-to-many class="Child" />
</bag>
</class>
</hibernate-mapping>
Class Child :
Quote:
[Serializable]
public class Child : DomainObject<Int32>
{
public Child()
{
}
private string _Name;
public virtual string Name
{
get { return _Name; }
set { _Name = value; }
}
private int _ParentID;
public virtual int ParentID
{
get { return _ParentID; }
set { _ParentID = value; }
}
private Parent _InfoParent;
public virtual Parent InfoParent
{
get { return _InfoParent; }
set { _InfoParent = value; }
}
}
Quote:
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="RedSea.CMS.Model" namespace="RedSea.CMS.Model">
<class name="Child" table="Child" >
<id name="ID" type="System.Int32" column="ChildID">
<generator class="identity" />
</id>
<property name="ParentID" column="ParentID" type="System.Int32" not-null="false" />
<property name="Name" column="Name" type="System.String" not-null="false" />
<many-to-one name="InfoParent" class="Parent" column="ParentID" update="false" insert="false"/>
</class>
</hibernate-mapping>
Login
FAQ
Search