c# - How to add list into list? -

ok have :

if(something!=null) {   submenu.add(new submenumodel("personal_information","account.personalinformation","/account/personalinformation")); }   if(something123!=null) {            submenu.add(new submenumodel("notifications", "account.notificationsettings", "/account/notifications")); }       submenu.add(new submenumodel("change_password", "account.changepassword", "/account/passwordchange"));       submenu.add(new submenumodel("game_settings", "default", "default"));      mainmenu.add(new mainmenumodel("settings", "default", "default", true,                })); 

edit:

public list<submenumodel> submenu { get; set; }  public list<mainmenumodel> mainmenu { get; set; } 

how can add submenu main menu because have condition if condition !=null add list...any sugesstion?

you can follow link.

you have mainmenu.addrange(submenu);

hope helps you

edit : ok can make think can add menuitems existing menuitem like:

menuitem adddevice = new menuitem("add device"); adddevice.menuitems.add( new menuitem("add more ..")); visible like: 

i see solution here , works me.