Wpf Datagrid Row Colors

As I  am  going to  develop  a  new  project  by  extending  capabilities  of  previous  project which was  developed  in WPF,VC#. My  new  project  is  going  to  communicate  with  two  different  biomedical  instruments. From  instrument  I  will  read  results  and  save into database. From database  by  processing  results  I  will show  it  in different  formats  on  various forms as  per  domain  requirement. While  saving  results  in database  I  will  store  it   with  instrument  id.
Now  while  showing on  datagrid  I  have  to  display  results  in different  ForeColor  and  different  backcolor  of rows for two  different  instrument.I  have  searched  in  google   and I  have  just  known  that  coloring  rows  is possible  in  WPF. Now  Please  by  understanding  my  problem,can  any one  tell  me  syntax  or  tips. I  am  right  now  in  design  phase  for  my  project. So  tips  from  experts  will be  helpful  at  this  time. I  want  to  have  good  graphs  for  displaying  on  WPF,Is  there  any  good  cheap  resource  available  in  market? Please  suggest