Dataset - project targeting .net framework 4.8 and .net 8 - DiagnosticId error in auto generated code in dataset

[vsfeedback]

This issue has been moved from a ticket on Developer Community.

---

[regression] [worked-in:I believe it worked pre 17.11]
I have installed VS version 17.11.1 and there is currently an error when you change anything in dataset and press save.

VS now adds an attribute to the dataset:

[System.ObsoleteAttribute("This API supports obsolete formatter-based serialization. It should not be called" +
            " or extended by application code.", DiagnosticId="SYSLIB0051")]

It produces an error with "DiagnosticId" in .net 48 when building an app and we have to manually delete the attribute in order to run the app.

A fix provided here is not a solution - https://learn.microsoft.com/en-us/dotnet/fundamentals/syslib-diagnostics/syslib0051

Also, ignoring the warning is also not a good solution: "To suppress all the SYSLIB0051 warnings in your project, add a property to your project file."

---

Original Comments

Feedback Bot on 8/28/2024, 04:39 AM:

We have directed your feedback to the appropriate engineering team for further evaluation. The team will review the feedback and notify you about the next steps.

Artur Idzikowski on 9/10/2024, 03:11 AM:

Hey, any updates concerning the above? The error is really frustrating and prolongs the development time.

[kirsan31]

This is defiantly WinForms issue. Here I asked a similar question some time ago.