ToList().ForEach in Linq

Question

I am new to Linq.

I want to set two values in foreach statement like this

My actual code is this

foreach (Employee emp in employees         


        

Answer 1

employees.ToList().ForEach(
     emp=>
     {
          collection.AddRange(emp.Departments);
          emp.Departments.ToList().ForEach(u=>u.SomeProperty = null);
     });