Master page in WPF?

using System.Windows;

namespace MasterPage.Model
{
    /// <summary>
    /// Sample model for the application.
    /// </summary>
    public sealed class MainModel : DependencyObject
    {
        /// <summary>
        /// Main model singleton.
        /// </summary>
        private static readonly MainModel _TheMainModel = new MainModel();

        /// <summary>
        /// Private constructor.
        /// </summary>
        private MainModel()
        {
        }

        /// <summary>
        /// Singleton accessor.
        /// </summary>
        public static MainModel TheMainModel
        {
            get
            {
                return _TheMainModel; 
            }
        }

        /// <summary>
        /// Accessor for dependency property prop1.
        /// </summary>
        public string prop1
        {
            get { return (string)GetValue(prop1Property); }
            set { SetValue(prop1Property, value); }
        }

        /// <summary>
        /// Accessor for dependency property prop2.
        /// </summary>
        public string prop2
        {
            get { return (string)GetValue(prop2Property); }
            set { SetValue(prop2Property, value); }
        }

        /// <summary>
        /// Accessor for dependency property prop3.
        /// </summary>
        public string prop3
        {
            get { return (string)GetValue(prop3Property); }
            set { SetValue(prop3Property, value); }
        }

        /// <summary>
        /// Accessor for dependency property prop4.
        /// </summary>
        public string prop4
        {
            get { return (string)GetValue(prop4Property); }
            set { SetValue(prop4Property, value); }
        }

        /// <summary>
        /// Dependency property prop1.
        /// </summary>
        public static readonly DependencyProperty prop1Property = DependencyProperty.Register("prop1", typeof(string), typeof(MainModel));
        
        /// <summary>
        /// Dependency property prop2.
        /// </summary>
        public static readonly DependencyProperty prop2Property = DependencyProperty.Register("prop2", typeof(string), typeof(MainModel));

        /// <summary>
        /// Dependency property prop3.
        /// </summary>
        public static readonly DependencyProperty prop3Property = DependencyProperty.Register("prop3", typeof(string), typeof(MainModel));

        /// <summary>
        /// Dependency property prop4.
        /// </summary>
        public static readonly DependencyProperty prop4Property = DependencyProperty.Register("prop4", typeof(string), typeof(MainModel));
    }
}