When I use Inheritnace Hierarchy implementation (TargetPerHierarchy) like

AdvertisementSingleEntity : AdvertisementBaseEntity AdvertisementGroupEntity : AdvertisementBaseEntity

the MetaTables (AdvertisementSingle and AdvertisementGroup) provided by LLBLGenProDataModelProvider does not have primary key columns, resp. value of MetaModel.GetTable("AdvertisementSingle").PrimaryKeyColumns.Count is 0

the pk field is defined in AdvertisementBaseEntity and for its MetaTable there is MetaColumn in PrimaryKeyColumns collection.

Update/Insert page templates does not works.

Using v2.6

What's the file version of the SD.LLBLGen.Pro.DynamicDataSupportClasses.NET35.dll you are using?

version is 2.6.09.0324

I have stopped to use Inheritnace Hierarchy, because there were more related problems, not only with dynamic data, so you can close the thread if you want.

Personally, I'm fan of Dynamic Data, but there're quite a lot of of issues with the metadataprovider. I would be glad to hear from you about plans to support newer asp.net 4 DynamicData, which has many great improvements.

We have no plans to support the newer versions as MS is not really pushing the framework any forward (in fact, it looks like it's been abandoned in favor of WCF RIA services).