After update .NET9, dialog.ShowDialog() crash the application . It happens on some machine, not all machine. The same code work on .net8.

I'm making a project where a file needs to be loaded and I'm using runtime.OpenFileDialog and when my frontend calls my OpenFileDialog function bound to my app ...

I'm new to the C# language and .Net Visual Studio 2003 environment, and I've got an aggravating problem. I have a C# windows form application which launches another form, and when I close down the app ...