Switch case and generics checking

Question

I want to write a function that format int and decimal differently into string

I have this code:

and I want to rewrite it to generi

Answer 1

Another way to do switch on generic is:

switch (typeof(T))
{
    case Type intType when intType == typeof(int):
        ...
    case Type decimalType when decimalType == typeof(decimal):
        ...
    default:
        ...
}