Hi,

I use this inheritance hierarchy: ShotEntity based on CoreEntity TaskEntity based on CoreEntity ShotEntity can have TaskEntity as a child.

There are a lot more classes and the relationships need to be dynamic that's why ShotEntity doesn't have a Tasks property but rather CoreEntity has a porperty called CoreChildren which is a collection of CoreEntity objects.

Now to be able to bind this collection I would like to use the following so that the Grid can databind the sub type properties correctly:

[TypeContainedAttribute(typeof(MyTaskEntity))]
public override EntityView2<CoreEntity> ChildrenAsTasks
{
    get
    {
        EntityCollection<CoreEntity> toReturn = base.CoreChildren;
        toReturn.EntityFactoryToUse = new MyTaskEntityFactory();
        return toReturn.CreateView(CoreFields.EntityTypeId == 2) as EntityView2<CoreEntity>;
        }
}

[TypeContainedAttribute(typeof(MyShotEntity))]
public override EntityView2<CoreEntity> ChildrenAsShots
{
    get
    {
        EntityCollection<CoreEntity> toReturn = base.CoreChildren;
        toReturn.EntityFactoryToUse = new MyShotEntityFactory();
        return toReturn.CreateView(CoreFields.EntityTypeId == 3) as EntityView2<CoreEntity>;
        }
}

So my question is if you see any problems with this approach?

Thanks, Patrick

It seems ok. However, you have to be careful how are you prefetching such child entities. Are you using Polymorphic prefetchPaths?