Where to define delegates in .Net 6 Console template using top level statements?

Question

I recently tried the .Net 6 console template, with top level statements, in Visual studio and stumbled into a Gotcha. If you try to compile the below code, Visual Studio will give a red squiggly line under the string declaration var s = "myString";. You will also receive the error: Top-level statements must precede namespace and type declarations.

delegate string StringReturner(int i);

var s = "myString";
Console.WriteLine(s);

So, what is the problem here?

score 1 · Accepted Answer · answered Jun 05 '22 at 08:42

The issue is that the delegate declaration has to happen after the top level statements. A delegate declaration does not count as a top level statement, but counts as a type declaration. The following code works fine:

var s = "myString";
Console.WriteLine(s);

delegate string StringReturner(int i);

Where to define delegates in .Net 6 Console template using top level statements?

1 Answers1