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Editorial Team
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Asked: 2026-05-26T05:53:57+00:00

I’m taking another look at Model-View-Presenter (or Supervising Controller, whatever it’s called nowadays) since

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I’m taking another look at Model-View-Presenter (or Supervising Controller, whatever it’s called nowadays) since we use WebForms exclusively at work and I think the separation of concerns can help.

My question is regarding the “View” interface – I understand that you create a view for each page, along with the presenter, and the ASPX page implement the IWhateverPageView interface so it can pass itself as the View the presenter will use. Where does that interface get created in regards to projects/DLLs? I know it’s customary that the Presenters all have a MyProject.Presentation class library they live in (and then you might have separate libraries for your Repositories/Services/Domain Objects/etc.). Does the IWhateverPageView interface belong in the Presentation layer, perhaps in a child namespace (e.g. MyProject.Presentation.Views)? Does it need its own library (e.g. MyProject.Views)?

What is the common structuring for this?

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1 Answer

  1. Editorial Team

    I’ve done MVP a lot in WebForms, and I typically organized my project very simply to begin with.

    MyProject.Web.UI

    Contains the web site. Web pages, javascript, etc…

    MyProject.Web

    Contains all the Presenters, Views (interfaces) and logic needed to wire the UI to the business logic.

    MyProject.Lib

    Usually contains the domain logic, but if the project is simple enough, I shove this into the MyProject.Web assembly.

    MyProject.Web.Tests, MyProject.Lib.Tests

    You do have test projects right?

    In the end, it really depends on what your needs are. There is no standard practice out there, so any convention you come up with should make sense to you and your team. If that means you have one, two, or twenty projects, then so be it.

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