How to generate class with file-scoped namespace syntax (C# 10) in vs code?

Question

I would like to generate a new C# Class or C# Interface in Microsoft Visual Studio Code following the newest C#10 file-scoped namespace syntax.

https://docs.microsoft.com/en-us/dotnet/csharp/fundamentals/types/namespaces

Beginning with C# 10, you can declare a namespace for all types defined in that file, as shown in the following example:

namespace SampleNamespace;

class AnotherSampleClass
{
    public void AnotherSampleMethod()
    {
        System.Console.WriteLine(
            "SampleMethod inside SampleNamespace");
    }
}

I'm generating C# classes this way:

Right click on folder in the explorer -> New C# Class.

The output looks like this: (the old syntax with curly braces)

namespace SampleNamespace
{
    class SampleClass
    {
        public void SampleMethod()
        {
            System.Console.WriteLine(
                "SampleMethod inside SampleNamespace");
        }
    }
}

I'm using C# for Visual Studio Code (powered by OmniSharp). v1.24.0

VS Code version is 1.62.3

Is there any way to override the generator behaviour to generate new file-scoped namespace syntax?

Answer 1

If you don't get the answer you seek in terms of changing the generator, you could consider:

• Install AutoHotKey
• Add this to the AHK script:

; CtrlAltN - convert to file scoped namespace
^!N::
KeyWait Control
KeyWait Alt
Send ^{Home}{Down}{Delete}{Delete}^{End}{Backspace}^a+{Tab}
return

• Make a new class
• Put the cursor anywhere in it and press Ctrl+Alt+M

It literally presses the following keys (after waiting for you to release Ctrl, Alt)

• Ctrl+Home - cursor to top of file
• Down - cursor to { line
• Del Del - remove { and line
• Ctrl+End - go to end
• Bksp - remove }
• Ctrl+a - select all
• Shift+Tab - undent

I'm sure you can tweak the script as required; ; prefixing a line is a comment, ^!N:: is a hotkey ^ means Ctrl, ! means Alt, + means Shift.. Then the other keys are either {named} or literal chars