Some of my apps show tons of databinding errors on repeating panel template forms when switching to the beta designer. It looks like the repeating panel’s items has been assigned a list of something that the designer doesn’t like.
The repeating panel in this snapshot is designed to manage instances of a class with the what, when and who members in its items property. The app works well at runtime because items does contain instances of the correct class, works well with the classic designer because it doesn’t try to resolve databinding, but in the beta designer it looks really ugly.
Main form in the classic designer:
Main form in the beta designer:
Any suggestion on how to manage databinding that doesn’t have simple dictionary like expressions, which is most of my repeating panels?