saving data from datagriedviewtextboxcolumn into sql

Question

hello i have problem for creating an windows base application in c# & in my that form 3 textbox and 1 griedview & in that griedview 1 datagriedviewtextboxcolumn  and 1 datagriedviewcomboboxcolumn now how to store all data in sql from datagriedviewtextboxcolumn & datagriedviewcomboboxcolumn  and also from that 3 textbox into sql in windows applicaion