如何让 ListBox 控件绑定到自定义数据结构并显示自定义数据结构中的指定数据？

如何让 ListBox 控件绑定到自定义数据结构并显示自定义数据结构中的指定数据？

例如，一个学生有姓名和年龄两个属性，一个班级有50名学生。我们要用一个 ListBox 控件采用数据绑定的方式显示数据，并且只显示这个班级每个学生的姓名。

数据绑定到自定义数据结构的关键点在于绑定字段必须是属性（而非变量）。在本例中，我们要让控件 listBox1 显示“姓名字段”，所以“Name”必须声明为一个属性，而不能是变量。

本文章搜索引擎关键字：WinForm、WindowsForm、数据绑定、自定义数据绑定、自定义数据结构、自定义数据结构绑定到 ListBox 控件。

下面是相关代码实现：（.NET Framework 2.0 环境编译通过）

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace test
{
    public class Form1 : Form
    {
        /// <summary>
        /// 你自己的数据结构。在这个例子中，我们定义了“姓名”和“年龄”两个属性。
        /// </summary>
        public class Stu
        {
            private string _Name;
            /// <summary>
            /// 姓名
            /// </summary>
            public string Name
            {
                get
                {
                    return this._Name;
                }
                set
                {
                    this._Name = value;
                }
            }
            private int _Age;
            /// <summary>
            /// 年龄
            /// </summary>
            public int Age
            {
                get
                {
                    return this._Age;
                }
                set
                {
                    this._Age = value;
                }
            }
            public Stu(string pName, int pAge)
            {
                this.Name = pName;
                this.Age = pAge;
            }
        }

        /// <summary>
        /// 这里定义了一个数据集合用来存放类“Stu”的实例。
        /// </summary>
        System.Collections.Generic.List<Stu> myClass = new List<Stu>();

        private System.Windows.Forms.ListBox listBox1;
        private System.Windows.Forms.Button button1;
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        public Form1()
        {
            InitializeComponent();
            myClass.Add(new Stu("赵志良", 26));
            myClass.Add(new Stu("马玉华", 33));
            myClass.Add(new Stu("王贺", 30));

            this.listBox1.DataSource = myClass;//绑定数据。
            this.listBox1.DisplayMember = "Name";//指示列表控件显示“姓名”属性。
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.listBox1 = new System.Windows.Forms.ListBox();
            this.button1 = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // listBox1
            // 
            this.listBox1.FormattingEnabled = true;
            this.listBox1.ItemHeight = 12;
            this.listBox1.Location = new System.Drawing.Point(12, 22);
            this.listBox1.Name = "listBox1";
            this.listBox1.Size = new System.Drawing.Size(408, 232);
            this.listBox1.TabIndex = 0;
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(134, 281);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(162, 23);
            this.button1.TabIndex = 1;
            this.button1.Text = "显示选中记录的详细信息";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(432, 338);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.listBox1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);

        }

        #endregion


        private void button1_Click(object sender, EventArgs e)
        {
            if (this.listBox1.SelectedIndex == -1)
            {
                MessageBox.Show("必须选中一条记录。");
                return;
            }
            Stu s = (Stu)(this.listBox1.SelectedItem);
            MessageBox.Show("姓名：" + s.Name + "\r\n年龄：" + s.Age);
        }
    }
}