Thx for the help. I changed the mapping to use <bag> and it worked
fine. I didn't have to change my domain object at all it still
references IList<T>. Note I have lazy loading set to false at the
class level and the <bag> level.
p.s. I didn't mean to offend anyone by saying I didn't want to use
Iesi.collections. I totally agree .net needs a set, it's a real joke
they don't have one. I was just trying to make the move to nhib a
little easier for some of my developers.
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
assembly="Entity"
namespace="ClaimAudit.Entity">
<class name="ClaimAudit.Entity.User" lazy="false" table="users">
<id name="Id">
<generator class="native"/>
</id>
<bag name="Accounts" table="user_accounts" lazy="false"
cascade="save-update" generic="true">
<key column="userid"/>
<many-to-many column="accountid" class="Account"/>
</bag>
<property name="Username"/>
</class>
</hibernate-mapping>
On Oct 16, 1:36 pm, Fabio Maulo <[email protected]> wrote:
> If you want use <set> you should use ISet in the classif you want use IList
> you should use <bag> in the mapping.
>
> 2009/10/16 welzie <[email protected]>
>
>
>
>
>
> > I'm sure this gets asked all the time but here goes. I am having
> > problems figuring out how to nhib to populate a collection of
> > objects. I do NOT want to use the Iesi.collections. I do NOT want to
> > introduce a dependency on those classes throughout my application.
>
> > Is there anyway to get nhib to populate a collection with an
> > implementation of System.Collections.Generic.IList<T>? Surely there
> > is a solution to this or does everyone just reference
> > Iesi.Collection.ISet throughout their apps?
>
> > Below is the error I get when nhib tries to populate the Accounts
> > property of the User class. I am using nhib 2.1.0GA. (Account mapping
> > and class not shown)
>
> > ERROR:
> > System.InvalidCastException : Unable to cast object of type
> > 'NHibernate.Collection.Generic.PersistentGenericSet`1
> > [ClaimAudit.Entity.Account]' to type
> > 'System.Collections.Generic.IList`1[ClaimAudit.Entity.Account]'.
>
> > MY CLASS:
> > using System.Collections.Generic;
> > public class User
> > {
> > public virtual int Id {get; set;}
> > private IList<Account> accounts = new List<Account>();
> > public virtual IList<Account> Accounts {get{return accounts;}
> > set{accounts = value;}}
> > public virtual string Username {get; set;}
> > }
>
> > MAPPING:
> > <?xml version="1.0" encoding="utf-8" ?>
> > <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
> > assembly="Entity"
> > namespace="ClaimAudit.Entity">
> > <class name="ClaimAudit.Entity.User" lazy="false" table="users">
> > <id name="Id">
> > <generator class="native"/>
> > </id>
> > <set name="Accounts" table="user_accounts">
> > <key column="userid"/>
> > <many-to-many column="accountid" class="Account"/>
> > </set>
> > <property name="Username"/>
> > </many-to-one>
> > </class>
> > </hibernate-mapping>
>
> --
> Fabio Maulo
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