using System;

using System.Reflection;

using System.Collections.Generic;

using System.Collections;

using System.Collections.ObjectModel;

using System.Linq;

​

//https://stackoverflow.com/questions/73818082/does-c-sharp-have-a-generic-equivalent-of-javas-classt

​

public class FooClass

{

    static bool IsSelfComparable(Type type) => type

        .GetInterfaces()

        .Any(t => t.IsGenericType && t.GetGenericTypeDefinition() == typeof(IComparable<>) && t.GetGenericArguments()[0] == type);

    public void Foo(IEnumerable<Type> types)

    {

        foreach (var type in types)

        {

            if (!IsSelfComparable(type))

                throw new ArgumentException($"Invalid type {type}");

            // Operate on each type however you want, e.g.:

            Console.WriteLine(type);

        }

    }

}

​

public class Program

{

    public static void Main()

    {

        var fooClass = new FooClass();

        fooClass.Foo([typeof(int), typeof(DateTime), typeof(string)]);

        try

        {

            fooClass.Foo([typeof(object)]);

        }

        catch (ArgumentException ex)

        {

            Console.WriteLine("Caught expected exception {0}", ex.Message);

        }

    }

}