Migration from .Net Web Application (Framework 4.7) into .Net Core Web 8.0

Banu 20

Hi,

I would like to migrate my application from .Net Framework 4.7 to .Net Core 8.0 as I would like to have my application in the latest version. My application is in MVP architecture and web pages are aspx (UI part). Is there any easy way to migrate it into 8.0? Kindly suggest.

Thanks

Banu

Fei Han - MSFT 306 Reputation points Microsoft Vendor

2025-01-29T04:02:15.97+00:00

Please note that ASP.NET Core supports MVC, Razor Pages, and other project types, but Web Forms (.aspx) is not included. To migrate your older Web forms project to ASP.NET Core, you can check this doc : https://learn.microsoft.com/en-us/aspnet/core/migration/web_forms?view=aspnetcore-9.0
SurferOnWww 3,816 Reputation points

2025-01-29T04:39:03.5233333+00:00

My application is in MVP architecture and web pages are aspx (UI part).

Is "MVP" above typo of MVC?
Fei Han - MSFT 306 Reputation points Microsoft Vendor

2025-01-29T04:54:21.04+00:00

My application is in MVP architecture and web pages are aspx (UI part) .aspx is Web Forms app, not MVC.
Banu 20 Reputation points

2025-01-29T04:54:57.6666667+00:00

Thanks for your reply. Yes I had gone through the link. I am able to migrate class library projects into 8.0 using Upgrade assistance (as mentioned). But, not able to do to ASP.NET web project. As I had mentioned the web pages are as ASPX. I am not able to do it.
Banu 20 Reputation points

2025-01-29T05:04:28.94+00:00

Yes.. It is not typo. My Web application is not MVC. It is web form application (follows MVP (Model-View-Presenter) Architecure)
Banu 20 Reputation points

2025-01-29T06:53:09.9+00:00

I am not able to migrate aspx pages into core. Kindly advise
AgaveJoe 29,681 Reputation points

2025-01-29T10:56:39.06+00:00

I am not able to migrate aspx pages into core. Kindly advise

You will have to manually migrate the ASPX pages

1 answer

Bruce (SqlWork.com) 70,376 Reputation points

2025-01-29T21:48:47.57+00:00

asp.net core has no support for aspx pages, nor are there very good migration tools.

if you used .aspx as a template engine rather than webforms control tree, then migration is easier. you will want to switch to asp.net core Razor Pages.

https://learn.microsoft.com/en-us/aspnet/core/razor-pages/?view=aspnetcore-9.0&tabs=visual-studio

postback handling is different in asp.net core. your server callback just gets the postback data model, there are no UI events.

note: vb.net is only supported as libraries, not UI code.
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Migration from .Net Web Application (Framework 4.7) into .Net Core Web 8.0

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