调用时C＃方法错误

Question

I have a assignment for my C# course, but I cant figure it out. I want to show the cars I have, but it doesn't work. Can someone please help me ?

Program:

using System;
using System.Collections.Generic;
using System.Text;

namespace auto
{
    class Program
    {
        static void Main(string[] args)
        {

            List<auto> autos = new List<auto>();
            auto auto1 = new auto("Lamborgini" , "Aventador" , "2004");
            display();
        }

          void display(List<auto> auto)
        {
            foreach (auto item in auto)
            {
                Console.WriteLine("Merk :" + item.merk );
                Console.WriteLine("Model :" + item.model);
                Console.WriteLine("Jaar :" + item.jaar);
                Console.ReadKey();
            }
        }

    }
}

Class:

using System;
using System.Collections.Generic;
using System.Text;

namespace auto
{
    class auto
    {

        public string merk { get; set; }
        public string model { get; set; }
        public string jaar { get; set; }

        public auto(string merk , string model, string jaar)
        {
            this.merk = merk;
            this.model = model;
            this.jaar = jaar;
        }




    }
}

This is the error I get:

Severity Code Description Project File Line Suppression State Error CS7036 There is no argument given that corresponds to the required formal parameter 'auto' of 'Program.display(List)' auto C:\\Users\\nickg\\source\\repos\\auto\\auto\\Program.cs 14 Active

Answer 1

You are going to get a compilation error. So all you need to do is pass the parameter to the function.

    static void Main(string[] args)
    {
        List<auto> autos = new List<auto>();
        autos.Add(new auto("Lamborgini" , "Aventador" , "2004"));
        display(autos);
    }

Answer 2

Make the display method static and pass autos as the parameter when you call it.

The posted code uses auto as the namespace, class name and parameter name, so I suspect sooner or later the compiler will get confused. Consider giving them different names.