ListBox : ListBox Data Binding : GUI Windows Form C# Source Code

    

/*
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;
using System.Drawing.Text;

namespace DataBinding101
{
    /// <summary>
    /// Summary description for BindingUnusualProperties.
    /// </summary>
    public class BindingUnusualProperties : System.Windows.Forms.Form
    {
        internal System.Windows.Forms.Label Label2;
        internal System.Windows.Forms.Label Label1;
        internal System.Windows.Forms.ListBox lstFonts;
        internal System.Windows.Forms.Label lblSampleText;
        internal System.Windows.Forms.ListBox lstColors;
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.Container components = null;

        public BindingUnusualProperties()
        {
            //
            // 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.Label2 = new System.Windows.Forms.Label();
            this.Label1 = new System.Windows.Forms.Label();
            this.lstFonts = new System.Windows.Forms.ListBox();
            this.lblSampleText = new System.Windows.Forms.Label();
            this.lstColors = new System.Windows.Forms.ListBox();
            this.SuspendLayout();
            // 
            // Label2
            // 
            this.Label2.Location = new System.Drawing.Point(210, 13);
            this.Label2.Name = "Label2";
            this.Label2.Size = new System.Drawing.Size(140, 12);
            this.Label2.TabIndex = 9;
            this.Label2.Text = "Choose a Font:";
            // 
            // Label1
            // 
            this.Label1.Location = new System.Drawing.Point(14, 13);
            this.Label1.Name = "Label1";
            this.Label1.Size = new System.Drawing.Size(140, 12);
            this.Label1.TabIndex = 8;
            this.Label1.Text = "Choose a Color:";
            // 
            // lstFonts
            // 
            this.lstFonts.Location = new System.Drawing.Point(210, 29);
            this.lstFonts.Name = "lstFonts";
            this.lstFonts.Size = new System.Drawing.Size(180, 134);
            this.lstFonts.TabIndex = 7;
            // 
            // lblSampleText
            // 
            this.lblSampleText.Anchor = (((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
                | System.Windows.Forms.AnchorStyles.Left) 
                | System.Windows.Forms.AnchorStyles.Right);
            this.lblSampleText.Location = new System.Drawing.Point(18, 185);
            this.lblSampleText.Name = "lblSampleText";
            this.lblSampleText.Size = new System.Drawing.Size(372, 96);
            this.lblSampleText.TabIndex = 6;
            this.lblSampleText.Text = "Click an item in one of the lists above to change the font or color of this text." +
                " Once the initial conditions are set up (i.e., the binding), this operation happ" +
                "ens automatically.";
            // 
            // lstColors
            // 
            this.lstColors.Location = new System.Drawing.Point(14, 29);
            this.lstColors.Name = "lstColors";
            this.lstColors.Size = new System.Drawing.Size(176, 134);
            this.lstColors.TabIndex = 5;
            // 
            // BindingUnusualProperties
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 14);
            this.ClientSize = new System.Drawing.Size(404, 294);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                          this.Label2,
                                                                          this.Label1,
                                                                          this.lstFonts,
                                                                          this.lblSampleText,
                                                                          this.lstColors});
            this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
            this.Name = "BindingUnusualProperties";
            this.Text = "Binding Unusual Properties";
            this.Load += new System.EventHandler(this.BindingUnusualProperties_Load);
            this.ResumeLayout(false);

        }
        #endregion

        private void BindingUnusualProperties_Load(object sender, System.EventArgs e)
        {
            // These are our final data sources: two ArrayList objects.
            ArrayList fontObjList = new ArrayList();
            ArrayList colorObjList = new ArrayList();

            // The InstalledFonts collection allows us to enumerate installed fonts.
            // Each FontFamily needs to be converted to a genuine Font object
            // before it is suitable for data binding to the Control.Font property.
            InstalledFontCollection InstalledFonts = new InstalledFontCollection();
            foreach (FontFamily family in InstalledFonts.Families)
            {
                try
                {
                    fontObjList.Add(new Font(family, 12));
                }
                catch
                {
                    // We end up here if the font could not be created
                    // with the default style.
                }
            }

            // In order to retrieve the list of colors, we need to first retrieve
            // the strings for the KnownColor enumeration, and then convert each one
            // into a suitable color object.
            string[] colorNames;
            colorNames = System.Enum.GetNames(typeof(KnownColor));
            TypeConverter cnvrt = TypeDescriptor.GetConverter(typeof(KnownColor));

            foreach (string colorName in colorNames)
            {
                colorObjList.Add(Color.FromKnownColor((KnownColor)cnvrt.ConvertFromString(colorName)));
            }

            // We can now bind both our list controls.
            lstColors.DataSource = colorObjList;
            lstColors.DisplayMember = "Name";
            lstFonts.DataSource = fontObjList;
            lstFonts.DisplayMember = "Name";

            // The label is bound to both data sources.
            lblSampleText.DataBindings.Add("ForeColor", colorObjList, "");
            lblSampleText.DataBindings.Add("Font", fontObjList, "");

        }

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