Problem with WiseJ 4 NET Core Designer #4851

Roberto Faccani asked 2025-09-10 15:14:21 UTC

Hello,

I am creating a small Hybrid Offline application using only WiseJ 4 and NET Core 9.0.

When I created the application with the wizard, I removed the reference to NET Framework 4.8 in order to obtain the new NET Core-based designer.

Everything is working fine except that I have added a page and a user control.

The problem lies in the user control. I inserted text boxes, labels, toolbars, etc., entered my code, and everything seems to be working.

But for some reason, when I try to reopen my user control, sometimes it doesn't open and I lose everything I had inserted. When I check the Designer file, I find that the name of my user control class has changed and taken the name of another control inserted in the same user control.

For example:

Public Class MyUserControl

'My code

End Class

Public Class ToolBox1

'My code

End Class

I tried recreating the user control from scratch, but the problem persists. I solved the problem by putting NET Framework 4.8 back into the project so that I could use the old WiseJ designer, which does not have this problem.

If necessary, I can try to create a test project.

Thank you.