Using VS.NET PropertyGrid control

Using .NET Framework PropertyGrid
control using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Globalization;

[STAThread]

            static void Main()

            {

                  Application.Run(new OptionsDialog());

            }

public class OptionsDialog : System.Windows.Forms.Form

      {

            private System.Windows.Forms.PropertyGrid OptionsPropertyGrid;

            private AppSettings appset = new AppSettings();

            public void GreetingsOnChange(string msg) {

                  this.Text=msg;

            }

            public OptionsDialog()

            {

                  OptionsPropertyGrid = new PropertyGrid();

                  OptionsPropertyGrid.Size = new Size(300, 250);

appset.GreetingsOnChange += new GreetingsChanged(GreetingsOnChange );

                  this.Controls.Add(OptionsPropertyGrid);

                  this.Text = "Options Dialog";

                  // Create the AppSettings class and display it in the PropertyGrid.

                  OptionsPropertyGrid.SelectedObject = appset;

            }

      }

      public delegate void GreetingsChanged(string msg);

      public class AppSettings

      {

            private bool saveOnClose = true;

            private string greetingText = "Welcome to your application!";

            private int itemsInMRU = 4;

            private int maxRepeatRate = 10;

            private bool settingsChanged = false;

            private string appVersion = "1.0";

            private View  view=View.Details;

            private FormWindowState windowState=FormWindowState.Normal;

            private Color toolbarColor = SystemColors.Control;

            public event GreetingsChanged GreetingsOnChange;

            public FormWindowState WindowState

            {

                  get { return windowState; }

                  set { windowState= value;}

            }

            public View SaveView

            {

                  get { return view; }

                  set { view= value;}

            }

            public Color ToolbarColor

            {

                  get { return toolbarColor; }

                  set { toolbarColor = value; }

            }

            public bool SaveOnClose

            {

                  get { return saveOnClose; }

                  set { saveOnClose = value;}

            }

            public string GreetingText

            {

                  get { return greetingText; }

                  set { greetingText = value;

                              GreetingsOnChange(greetingText);

                  }

            }

            [ Description("This is repeate Rate")]

            public int MaxRepeatRate

            {

                  get { return maxRepeatRate; }

                  set { maxRepeatRate = value; }

            }

            public int ItemsInMRUList

            {

                  get { return itemsInMRU; }

                  set { itemsInMRU = value; }

            }

            public bool SettingsChanged

            {

                  get { return settingsChanged; }

                  set { settingsChanged = value; }