public BookViewModel BookDropdowns(int id = 0)
{
DropDownManager ddManager = new DropDownManager();
BookViewModel bookView = new BookViewModel();
bookView.ListOfFloors = ddManager.FloorDropdown();
bookView.ListOfOffices = ddManager.OfficeDropDown();
bookView.ListOfWorkpoint = ddManager.WorkpointsDropdown();
bookView.ListOfUsers = ddManager.UsersDropdown();
return(bookView);
}