display data from form1 datagridview selected row to form2

Question

Hai ,I have 2 forms form1 has button(btn_ok),datagridview has some rows.and form2 has 3 testboxes and a button(btn_newbill) if i press from2 button then form1 should be displayed and their if i select any row of my choice then that row columns should be displayed in form2 textboxes.Thank you