How to pass the Menu model to all page commonly using _layout ?

this is my  _Layout.cshtml   page : 

   

 

This is my   _PartialMenu.cshtml Page 
@using DyMenu.Pages
@model DyMenu.Pages.IndexModel 



   
   


    

 This is my Index.cshtml.cs  page . 
    public class IndexModel : PageModel
    {
        #region  Declartion 
        private IMenuItemAccess _menuItemAccessDA;
        private readonly IConfiguration _configuration;
        #endregion
        public IndexModel(IConfiguration configuration)
        { 
         _configuration = configuration;
        }
        [BindProperty]
        public IEnumerable menuItems { get; set; }
        [BindProperty]
        public MenuItem menuItemobj { get; set; }
        public void OnGet()
        {
            GetMenu();
        }
        public IEnumerable GetMenu()
        {
            string dbconnection = Utilities.InitializeConnectionString(_configuration);
            _menuItemAccessDA = new MenuItemAccess(dbconnection);
            menuItems = _menuItemAccessDA.GetMenuList();
            ViewData["MenuModelData"] = menuItems;
            return menuItems;
        }

       database : Menu 

       1, 0, 'Index', 'Index'
       2, 0, 'Privacy', 'Privacy'
       3, 0, 'Service', 'Service'
       4, 0, 'Products', 'Products'
       5, 0, 'Register', 'Register'
     Other than index page not working . the following error thrown we i run . can anyone suggest with solution 
     Here Menu item is generated from index.cshtml.somewhere in this part made mistake. i am not sure how to pass the 
     menuitem model  commonly   
     Error : 
     InvalidOperationException: The model item passed into the ViewDataDictionary is of type 'DyMenu.Pages.ProductsModel', 
     but this ViewDataDictionary instance requires a model item of type 'DyMenu.Pages.IndexModel'.
     Thanks in advance 
     Karthik.K