ViewComponent in .Net Core

Question

Hi I have created dynamic menu using ViewComponent. and it's working with return blank view() but if I am returning some view(Model). It's throw an error. InvalidOperationException: The model item passed into the ViewDataDictionary is of type 'A' but this ViewDataDictionary instance requires a model item of type 'B'.

Nitin Bhardwaj · Answer

ViewComponent Code public async Task InvokeAsync() { int roleId = (int)HttpContext.Session.GetInt32(RoleId); DashboardModel ObjMenuModel = new DashboardModel(); ObjMenuModel.MainMenuModel = new List (); ObjMenuModel.MainMenuModel = GetMainMenu(roleId); ObjMenuModel.SubMenuModel = new List (); ObjMenuModel.SubMenuModel = GetSubMenu(); ViewBag.ObjMenuModel = ObjMenuModel; var model = new ViewComponentModel (ViewBag.ObjMenuModel); return await Task.FromResult(View(model)); } public List GetMainMenu(int roleId) { CellDbHelper DbHelper = new CellDbHelper(); List ObjMainMenu = new List (); ObjMainMenu = DbHelper.GetManuDetailByRoleId(roleId); return ObjMainMenu; } public List GetSubMenu() { CellDbHelper DbHelper = new CellDbHelper(); List ObjSubMenu = new List (); ObjSubMenu = DbHelper.GetAllManuDetail(); return ObjSubMenu; } Controller Code CellDbHelper Helper = new CellDbHelper(); userModel = Helper.GetUserById(int.Parse(Id.ToString())); return View(userModel);

Nigel Fernandes · Answer

Hi can you share controller and view code ?