there is a BusinessListObject ProductCategorys, and its child BusinessBase ProductCategory
I refresh a instance of productcategory, and rebind the UI, throw exception "Edit level mismatch in CopyState"
This is with Windows Forms I assume?
You absolutely must unbind all objects from the UI before directly interacting with the objects (to do things like save or refresh). This is due to the way Windows Forms data binding works, as it is something I discuss at some length in the Using CSLA .NET 3.0 ebook (http://store.lhotka.net/).
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