当前上下文中不存在名称“..." [英] The name '...' does not exist in the current context

问题描述

我的 Main() 中有一个列表，我正在尝试从变量中向该列表添加一个项目.但它抛出错误当前上下文中不存在名称'dogList'"

I have a list within my Main() and I'm trying to add an item to that list from within a variable. But it's throwing the error "The name 'dogList' does not exist in the current context"

在我的 addDog() 方法中，dogList.Add() 由于上述原因不起作用.

Inside my addDog() method, dogList.Add() is not working due to above.

namespace DoggyDatabase
{
    public class Program
    {
          public static void Main(string[] args)
        {
        // create the list using the Dog class
        List<Dog> dogList = new List<Dog>();

        // Get user input
        Console.WriteLine("Dogs Name:");
        string inputName = Console.ReadLine();
        Console.WriteLine("Dogs Age:");
        int inputAge = Convert.ToInt32(Console.ReadLine());
        Console.WriteLine("Dogs Sex:");
        string inputSex = Console.ReadLine();
        Console.WriteLine("Dogs Breed:");
        string inputBreed = Console.ReadLine();
        Console.WriteLine("Dogs Colour:");
        string inputColour = Console.ReadLine();
        Console.WriteLine("Dogs Weight:");
        int inputWeight = Convert.ToInt32(Console.ReadLine());

        // add input to the list.
        addDog(inputName, inputAge, inputSex, inputBreed, inputColour, inputWeight);          
    }

    public static void addDog(string name, int age, string sex, string breed, string colour, int weight)
    {
        // The name 'dogList' does not exist in the current context
       dogList.Add(new Dog()
        {
            name = name,
            age = age,
            sex = sex,
            breed = breed,
            colour = colour,
            weight = weight
        });           
    }
}

public class Dog
{
    public string name { get; set; }
    public int age { get; set; }
    public string sex { get; set; }
    public string breed { get; set; }
    public string colour { get; set; }
    public int weight { get; set; }
}

}

推荐答案

dogList 是方法 Main 的局部.您要做的是将 dogList 置于该范围之外.

dogList is local to the method Main. What you want to do instead is to place dogList outside of that scope.

public class Program
{
    static List<Dog> dogList = new List<Dog>();

...

或者，您可以将列表发送到您的 add 方法中.

Alternately you can send the list into your add method.

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