从IEnumerable列表添加值数组列表

Question

I have the following code.

public IEnumerable<int> BillLevel { get; set; }

I want to add values like this

BillLevel = [1, 2, 3, 4, 5],

What is the right syntax to assign an array of int to this list?

Answer 1

IEnumerable is an Interface so first you need to declare it with a class which implements IEnumerable like List and then simply add to list.

public IEnumerable<int> BillLevel { get; set; }

BillLevel = new List<int>();
BillLevel.AddRange(new int[]{1, 2, 3, 4, 5});

Or you can Add the numbers in declaration

BillLevel = new List<int>(){1, 2, 3, 4, 5};

Answer 2

这将使用整数数组引入BillLevel属性。

BillLevel = new[] {1, 2, 3, 4}; 

Answer 3

You must to pass the reference of a class which implement IEnumerable Interface. Such as List Class implement this interface so you can pass the instance of List of int into this

public IEnumerable<int> BillLevel { get; set; }

BillLevel = new List<int>(){1,2,3,4,5};