Hello Patrick,

Unfortunately, the issue doesn't get replicated on my end. I know that I might have missed something during my attempt to reproduce the issue.

I have attached my project. You have to re-add references and Northwind database in order to run the sample.

However, I simply use WebGrid bind to ISDataSource using Northwind database as the dataset. And, in the project I have those 2 references assemblies, ISNet.Data.Linq and ISNet.WebUI.ISDataSource.

Can you try to bind WebGrid to Northwind dataset using ISDataSource control and see whether the error occurs on your end? I'm not sure what causes the issue yet, but in my case the error doesn't happen.

Hope this helps. Thank you.

Regards,
-Martin-

Thanks Martin.

I don't understand why, but your project is working fine. And even if I add my page making the exception, it is working.

The same page in my project is raising the exception ...

Hello,

It's weird because the issue only happens on your project.

When I create the project, I was using the Intersoft Empty Web Application template from Intersoft. It will automatically add all the references needed to run Intersoft control.

Maybe you can try to delete and re-add the assemblies back to your project. The error could be raised from your assembly references.

If you create a new project, does the issue still occur?

Thank you.

Regards,
-Martin-