C#

<code>// ProgramSettings class
namespace OpsTest
{
    [Serializable()]
    public class ProgramSettings
    {
        private Font    _editorFont;
        private Color   _editorTextColor;

        [Category("Editor Settings"),
        Description("The font used by the editor.")]
        public Font EditorFont
        {
            get { return _editorFont; }
            set { _editorFont = value; }
        }

        [Category("Editor Settings"),
        Description("The text color used by the editor.")]
        public Color EditorTextColor
        {
            get { return _editorTextColor; }
            set { _editorTextColor = value; }
        }
    }
}

// OptionsDialog class
    public partial class OptionsDialog : Form
    {
        ProgramSettings mySettings = new ProgramSettings();

        public OptionsDialog()
        {
            InitializeComponent();
        }

        private void OptionsDialog_Load(object sender, EventArgs e)
        {
            optionsPropertyGrid.SelectedObject = mySettings;
            SerializeLoad();
        }

        public void SerializeLoad()
        {
            string sFilename = Path.GetDirectoryName(Application.ExecutablePath) + @"\settings.dat";
            if (File.Exists(sFilename))
            {
                Stream inStream = File.Open(sFilename, FileMode.Open);
                BinaryFormatter bf = new BinaryFormatter();
                mySettings = (ProgramSettings)bf.Deserialize(inStream);
                inStream.Close();
            }
        }

        public void SerializeStore()
        {
            string sFilename = Path.GetDirectoryName(Application.ExecutablePath) + @"\settings.dat";
            Stream outStream = File.Open(sFilename, FileMode.Create);
            BinaryFormatter bf = new BinaryFormatter();
            bf.Serialize(outStream, mySettings);
            outStream.Close();
        }

        private void okButton_Click(object sender, EventArgs e)
        {
            SerializeStore();
            this.Close();
        }
</code>