Object List Binding : ListBox Data Binding « GUI Windows Form « C# / C Sharp






Object List Binding

Object List Binding
/*
User Interfaces in C#: Windows Forms and Custom Controls
by Matthew MacDonald

Publisher: Apress
ISBN: 1590590457
*/


using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;

namespace DataBinding101
{
    /// <summary>
    /// Summary description for ObjectListBinding.
    /// </summary>
    public class ObjectListBinding : System.Windows.Forms.Form
    {
        internal System.Windows.Forms.ListBox lstCity;
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.Container components = null;

        public ObjectListBinding()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();

            //
            // TODO: Add any constructor code after InitializeComponent call
            //
        }

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if(components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose( disposing );
        }

        #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.lstCity = new System.Windows.Forms.ListBox();
            this.SuspendLayout();
            // 
            // lstCity
            // 
            this.lstCity.Anchor = (((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
                | System.Windows.Forms.AnchorStyles.Left) 
                | System.Windows.Forms.AnchorStyles.Right);
            this.lstCity.IntegralHeight = false;
            this.lstCity.Location = new System.Drawing.Point(4, 4);
            this.lstCity.Name = "lstCity";
            this.lstCity.Size = new System.Drawing.Size(252, 216);
            this.lstCity.TabIndex = 2;
            this.lstCity.DoubleClick += new System.EventHandler(this.lstCity_DoubleClick);
            // 
            // ObjectListBinding
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 14);
            this.ClientSize = new System.Drawing.Size(268, 230);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                          this.lstCity});
            this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
            this.Name = "ObjectListBinding";
            this.Text = "ObjectListBinding";
            this.Load += new System.EventHandler(this.ObjectListBinding_Load);
            this.ResumeLayout(false);

        }
        #endregion

        private void ObjectListBinding_Load(object sender, System.EventArgs e)
        {
            City[] cityChoices = {new City("Seattle", "U.S.A."), 
                                     new City("New York", "U.S.A."), new City("Tokyo", "Japan"), 
                                     new City("Montreal", "Canada")};

            lstCity.DataSource = cityChoices;
            lstCity.DisplayMember = "Name";

        }

        private void lstCity_DoubleClick(object sender, System.EventArgs e)
        {
                MessageBox.Show(((City)lstCity.SelectedItem).Country);
        }

        [STAThread]
        static void Main() 
        {
            Application.Run(new ObjectListBinding());
        }
    }

    public class City
    {
        private string name;
        private string country;

        public string Name
        {
            get
            {
                return name;
            }
            set
            {
                name = value;
            }
        }

        public string Country
        {
            get
            {
                return country;
            }
            set
            {
                country = value;
            }
        }

        public City(string name, string country)
        {
            this.Name = name;
            this.Country = country;
        }
    }

}

           
       








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