GUI Windows Form C#

/*
User Interfaces in C#: Windows Forms and Custom Controls
by Matthew MacDonald
Publisher: Apress
ISBN: 1590590457
*/
using System.Drawing;
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace ProgressBarHost
{
    /// 
    /// Summary description for ProgressBarHost.
    /// 

    public class ProgressBarHost : System.Windows.Forms.Form
    {
        internal System.Windows.Forms.Timer tmrIncrementBar;
        private System.Windows.Forms.Button cmdStart;
        private Progress status;
        private System.ComponentModel.IContainer components;
        public ProgressBarHost()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();
            //
            // TODO: Add any constructor code after InitializeComponent call
            //
        }
        /// 
        /// Clean up any resources being used.
        /// 

        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if (components != null) 
                {
                    components.Dispose();
                }
            }
            base.Dispose( disposing );
        }
        #region Windows Form Designer generated code
        /// 
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// 

        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.status = new Progress();
            this.tmrIncrementBar = new System.Windows.Forms.Timer(this.components);
            this.cmdStart = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // status
            // 
            this.status.Location = new System.Drawing.Point(12, 8);
            this.status.Name = "status";
            this.status.Size = new System.Drawing.Size(272, 88);
            this.status.TabIndex = 0;
            // 
            // tmrIncrementBar
            // 
            this.tmrIncrementBar.Interval = 1000;
            this.tmrIncrementBar.Tick += new System.EventHandler(this.tmrIncrementBar_Tick);
            // 
            // cmdStart
            // 
            this.cmdStart.Location = new System.Drawing.Point(88, 152);
            this.cmdStart.Name = "cmdStart";
            this.cmdStart.Size = new System.Drawing.Size(92, 24);
            this.cmdStart.TabIndex = 1;
            this.cmdStart.Text = "Start";
            this.cmdStart.Click += new System.EventHandler(this.cmdStart_Click);
            // 
            // ProgressBarHost
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 14);
            this.ClientSize = new System.Drawing.Size(292, 194);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                          this.cmdStart,
                                                                          this.status});
            this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
            this.Name = "ProgressBarHost";
            this.Text = "ProgressBarHost";
            this.ResumeLayout(false);
        }
        #endregion
        /// 
        /// The main entry point for the application.
        /// 

        [STAThread]
        static void Main() 
        {
            Application.Run(new ProgressBarHost());
        }
        private void tmrIncrementBar_Tick(object sender, System.EventArgs e)
        {
            status.PerformStep();
            if (status.Maximum == status.Value)
            {
                tmrIncrementBar.Enabled = false;
            }
        }
        private void cmdStart_Click(object sender, System.EventArgs e)
        {
            tmrIncrementBar.Enabled = false;
            status.Value = 0;
            status.Maximum = 20;
            status.Step = 1;
            tmrIncrementBar.Enabled = true;
        }
    }
    /// 
    /// Summary description for Progress.
    /// 

    public class Progress : System.Windows.Forms.UserControl
    {
        internal System.Windows.Forms.Label lblProgress;
        internal System.Windows.Forms.ProgressBar Bar;
        ///  
        /// Required designer variable.
        /// 

        private System.ComponentModel.Container components = null;
        public Progress()
        {
            // This call is required by the Windows.Forms Form Designer.
            InitializeComponent();
            // TODO: Add any initialization after the InitForm call
        }
        ///  
        /// Clean up any resources being used.
        /// 

        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if(components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose( disposing );
        }
        #region Component Designer generated code
        ///  
        /// Required method for Designer support - do not modify 
        /// the contents of this method with the code editor.
        /// 

        private void InitializeComponent()
        {
            this.lblProgress = new System.Windows.Forms.Label();
            this.Bar = new System.Windows.Forms.ProgressBar();
            this.SuspendLayout();
            // 
            // lblProgress
            // 
            this.lblProgress.Anchor = ((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
                | System.Windows.Forms.AnchorStyles.Right);
            this.lblProgress.Location = new System.Drawing.Point(5, 46);
            this.lblProgress.Name = "lblProgress";
            this.lblProgress.Size = new System.Drawing.Size(152, 16);
            this.lblProgress.TabIndex = 3;
            this.lblProgress.Text = "0% Done";
            this.lblProgress.TextAlign = System.Drawing.ContentAlignment.TopCenter;
            // 
            // Bar
            // 
            this.Bar.Anchor = ((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
                | System.Windows.Forms.AnchorStyles.Right);
            this.Bar.Location = new System.Drawing.Point(5, 6);
            this.Bar.Name = "Bar";
            this.Bar.Size = new System.Drawing.Size(154, 32);
            this.Bar.TabIndex = 2;
            // 
            // Progress
            // 
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                          this.lblProgress,
                                                                          this.Bar});
            this.Name = "Progress";
            this.Size = new System.Drawing.Size(164, 68);
            this.ResumeLayout(false);
        }
        #endregion
        
        [Description("The current value (between 0 and Maximum) which sets the position of the progress bar"), 
        Category("Behavior"), DefaultValue(0)]
        public int Value
        {
            get
            {
                return Bar.Value;
            }
            set
            {
                Bar.Value = value;
                UpdateLabel();
            }
        }
        public int Maximum
        {
            get
            {
                return Bar.Maximum;
            }
            set
            {
                Bar.Maximum = value;
            }
        }
        public int Step
        {
            get
            {
                return Bar.Step;
            }
            set
            {
                Bar.Step = value;
            }
        }
        public void PerformStep()
        {
            Bar.PerformStep();
            UpdateLabel();
        }
        private void UpdateLabel()
        {
            lblProgress.Text = (Math.Round((decimal)(Bar.Value * 100) /
                Bar.Maximum)).ToString();
            lblProgress.Text += "% Done";
        }
    }
}