Sort a list and all its nested objects using LINQ

Question

There is an organisation with several departments and each department has a few employees.

I have created the following object model:

public class O         


        

Answer 1

I know this is an old question, but there's a simpler way of achieving the same result:

organisations = organisations.OrderBy(org =>
{
   org.Departments = org.Departments
   .OrderBy(dept =>
   {
     dept.Employees = dept.Employees
                     .OrderBy(employee => employee.Code)
                     .ThenBy(employee=>employee.Name);
     return dept.Code;
   })
   .ThenBy(dept=>dept.Name);

   return org.Code;
})
.ThenBy(org=>org.Name);