Form1.cs

using System;
using System.Globalization;
using System.Threading;
using System.Windows.Forms;

namespace GlobalizedPropertyGrid
{
    /// <summary>
    /// Summary description for Form1.
    /// </summary>
    public class Form1 : System.Windows.Forms.Form
    {
        private readonly Person person;
        private readonly string[] supportedLanguages = null;

        internal System.Windows.Forms.PropertyGrid PropertyGrid1;
        private System.Windows.Forms.ComboBox cbLang;

        /// <summary>
        /// Required designer variable.
        /// </summary>
        private readonly System.ComponentModel.Container components = null;

        public Form1()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();

            // Build an array of supported languages
            supportedLanguages = new string[2];
            supportedLanguages[0] = "en";
            supportedLanguages[1] = "de";

            // Instantiate test class and set some data
            person = new Person();
            person.FirstName = "Max";
            person.LastName = "Headroom";
            person.Age = 42;
        }

        /// <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.PropertyGrid1 = new System.Windows.Forms.PropertyGrid();
            this.cbLang = new System.Windows.Forms.ComboBox();
            this.SuspendLayout();
            // 
            // PropertyGrid1
            // 
            this.PropertyGrid1.Anchor = (((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
                | System.Windows.Forms.AnchorStyles.Left)
                | System.Windows.Forms.AnchorStyles.Right);
            this.PropertyGrid1.CommandsVisibleIfAvailable = true;
            this.PropertyGrid1.LargeButtons = false;
            this.PropertyGrid1.LineColor = System.Drawing.SystemColors.ScrollBar;
            this.PropertyGrid1.Location = new System.Drawing.Point(0, 40);
            this.PropertyGrid1.Name = "PropertyGrid1";
            this.PropertyGrid1.PropertySort = System.Windows.Forms.PropertySort.Categorized;
            this.PropertyGrid1.Size = new System.Drawing.Size(376, 200);
            this.PropertyGrid1.TabIndex = 1;
            this.PropertyGrid1.Text = "PropertyGrid1";
            this.PropertyGrid1.ViewBackColor = System.Drawing.SystemColors.Window;
            this.PropertyGrid1.ViewForeColor = System.Drawing.SystemColors.WindowText;
            // 
            // cbLang
            // 
            this.cbLang.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
            this.cbLang.Location = new System.Drawing.Point(8, 8);
            this.cbLang.Name = "cbLang";
            this.cbLang.Size = new System.Drawing.Size(121, 21);
            this.cbLang.TabIndex = 3;
            this.cbLang.SelectedIndexChanged += new System.EventHandler(this.cbLang_SelectedIndexChanged);
            // 
            // Form1
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(376, 237);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                          this.cbLang,
                                                                          this.PropertyGrid1});
            this.Name = "Form1";
            this.Text = "Globalized Property Grid Demo";
            this.Load += new System.EventHandler(this.Form1_Load);
            this.ResumeLayout(false);

        }
        #endregion

        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.Run(new Form1());
        }

        private void Form1_Load(object sender, System.EventArgs e)
        {
            // Setup combo box with languages available
            cbLang.Items.Insert(0, (new CultureInfo(supportedLanguages[0])).DisplayName);
            cbLang.Items.Insert(1, (new CultureInfo(supportedLanguages[1])).DisplayName);

            // Preselect the first one
            cbLang.SelectedIndex = 0;

            // Assign person to property grid
            PropertyGrid1.SelectedObject = person;
        }

        private void cbLang_SelectedIndexChanged(object sender, System.EventArgs e)
        {
            // get the language selected from combo box
            int lang = cbLang.SelectedIndex;
            if (lang == -1)
                return;

            // Set selected language as the current one
            Thread.CurrentThread.CurrentUICulture = new CultureInfo(supportedLanguages[lang]);

            PropertyGrid1.Refresh();
        }
    }
}