c# - Remove items from list<a> AND list<b> when a.Foo == b.Bar -

i'm looking elegant way of comparing 2 different list<> collections , removing items in specific field value matches. example: customer object

class customer {      string customername;     string email; }  class employee {     string employeename;     string employeeid;  }   list<customer> customers = new list<customers(getcustomers());  list<employee> employees = new list<employees(getemployees()); 

and know can remove employees list employees in customers list doing this:

 employees.removeall(e => customers.any(c.customername == e.employeename)); 

what know how can remove customers list corresponding employee? possible simple statement or need build out handle this?

what about:

employees.where(e => customers.any(c=> c.customername == e.employeename)).tolist()     .foreach(e=> {           employees.remove(e);           customers.removeall(c => c.customername == e.employeename);      });