如何将对象列表添加到类 [英] How to Add List of object to a class

问题描述

大家好，

如何将对象列表(例如，列表包含菜单项)添加到类列表功能.

问候，
Sham

Hello All,

How to Add List of object (for eg.List contains menu items) to a class List function.

Regards,
Sham

推荐答案

请参见下面的代码，这是您可以拥有自己的类项目的列表的方法.

See the code below, This is how you could have a list of your own Class Items.

using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication5
{
public partial class Form1 : Form
{
        public Form1()
        {
            InitializeComponent();
        }
        List<MenuItem> MyMenuItems = new List<MenuItem>();
        private void Form1_Load(object sender, EventArgs e)
        {
            MyMenuItems.Add(new MenuItem(1, "Sales"));
            MyMenuItems.Add(new MenuItem(2, "Purchase"));
            MyMenuItems.Add(new MenuItem(3, "Stock"));
            MyMenuItems.Add(new MenuItem(4, "Deliveries"));
            MyMenuItems.Add(new MenuItem(5, "Returns"));

        }
    }

    public class MenuItem
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public MenuItem()
        {
        }
        public MenuItem(int p_id, string p_name)
        {
            Id = p_id;
            Name = p_name;
        }
    }
}

如果您要将一个集合添加到另一个集合(例如两个List集合)，则只需执行以下操作:

If you''re adding one collection to another collection (two List collections for einstance) you just need to do this:

List<string> myList1 = new List<string>
List<string> myList2 = new List<string>

myList1.Add("one");
myList1.Add("two");
myList1.Add("three");

myList2.AddRange(myList1.ToArray());

如果那不是您想要做的，那么您将不得不更好地解释您的问题.顺便说一句，如果这就是您要执行的操作，则两个集合都应包含兼容的对象.

If that''s not what you want to do, you''re going to have to explain your question better. BTW, if that IS what you want to do, both collections should contain compatible objects.

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