c# - How to avoid parallel trees -


in many applications use repository pattern , bunch of classes representing model.

the repository accomplishes reading , writing (crud) database leveraging own model objects. these data hierachical in way, e.g. master-details views etc.

but end parallel trees of classes, having 1 tree in model , 1 tree in viewmodels. feels design-flaw.

is there way avoid that? how can expressed better?

i can't see bad here. it's ok have hierarchical view models/views, normal models. moreover, there can more 1 vm hierarchies, depending on use-cases.

if requirements application contains master data, detail data , need display them, can't throw master view , detail view in general.


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