plugins – The right way to entry the web page with out registering in wordpress

I’ve a difficulty with WordPress. I’ve the under code and I get into the admin menu

public  perform Create_Menu()
    {
     add_menu_page("demoset", "Demoset", 'manage_options', "demoset", array( $this ,"MenuFunction"), '', 6);
     add_submenu_page("demoset", "All Tables", "All Tables", 'manage_options', "demoset", array( $this ,"MenuFunction"));
     add_submenu_page("demoset", "Create Tables", "Create Tables", 'manage_options', "demolist", array( $this ,"Submenu_Function"));
    }

public  perform MenuFunction()
{
    require_once ADMIN_VIEWS_PATH . 'view-dashboard.php';
}

public  perform Submenu_Function()
{
    require_once ADMIN_VIEWS_PATH . 'view-create.php';
}

public  perform Edit_Function()
{
    require_once ADMIN_VIEWS_PATH . 'view-edit.php';
}

I can entry my web page utilizing under hyperlink

http://localhost:8080/wordpress/wp-admin/admin.php?web page=demoset

http://localhost:8080/wordpress/wp-admin/admin.php?web page=demolist

Now, My challenge is, I’ve to make use of the under hyperlink and I’ve to name the Edit_Function however I do not need to use the add_submenu_page. Any thought tips on how to use it?

http://localhost:8080/wordpress/wp-admin/admin.php?web page=demoedit