How does the line of code exactly look like, where the null reference
exception occurs? And where is this line of code?

On 24 Aug., 16:03, Seth Goldstein <[email protected]> wrote:
> The code is essentially:
>
> class ParentClass
> {
>   private int _myProperty;
>
>   ParentClass()
>   {
>   }
>
>   public virtual int MyProperty()
>   {
>     get; set;
>   }
>
> }
>
> class ChildClass : ParentClass
> {
>   ChildClass()
>   {
>     int myPropertyValue = base.MyProperty()
>   }
>
> }
>
> With mapping files similar to:
>
> <class name="ParentClass" table="`ParentClass`" lazy="false">
>         <id name="Id" access="field.camelcase-underscore">
>                 <column name="id" not-null="true" />
>                 <generator class="identity"/>
>         </id>
>         <property name="MyProperty" access="field.camelcase-underscore">
>                 <column name="my_property" not-null="true" />
>         </property>
> </class>
>
> <joined-subclass name="ChildClass" table="`ChildClass`"
> extends="ParentClass" lazy="false">
>         <key column="child_id" foreign-key="parent_id"/>
> </joined-subclass>
>
> On Aug 24, 12:58 am, Fabio Maulo <[email protected]> wrote:
>
> > the code please
>
> > 2009/8/21 Seth Goldstein <[email protected]>
>
> > > We have run into a problem with the latest version of NHibernate that
> > > has us totally stumped.  We have an inherited table schema using
> > > joined-subclasses in the mapping file.  And the business layer matches
> > > this schema.  In the constructor of one of the inherited classes, it
> > > tries to reference a property on the parent object, but fails with an
> > > “object reference not set to an instance of an object” exception.  In
> > > that code, I am a proxy and it is trying to reference that property
> > > fails since the property is on the object itself but not the proxy?
> > > This used to work just fine in NHibernate 1.2, but fails since our
> > > upgrade to 2.1 GA.  Do you have any ideas that might assist us?
> > > Thanks a lot for any information you can provide.  Will a call stack
> > > help?  Thanks again!
>
> > --
> > Fabio Maulo
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