Populating a Listbox in c#

I am new to .net. I am trying to populate a listbox with the following code. what am I doing wrong? The compiler complaigns about the last line saying "cannot convert a non deligate type"

      private void popList()
            {
                  var context = new AWDEntities();
                  {
                        var query = from c in context.COMMITTEES
                                          where c.COMMITTEE_ID == 5
                                          select new { c.COMMITTEE_HOUSE, c.COMMITTEE_MEMBERSHIP, c.COMMITTEE_HEARING_AGENDAS };
                        var cust = query.First();
                        ListBox1.Text = cust.ToString;
                  };
            }

      }
}