DataRow dr = nov_teh.Tables["teh"].NewRow();
                        dr["id"]=comboBox1.SelectedValue;
                        dr["otd"]=comboBox1.Text;
                        dr["naim"]=con.c1+"/"+con.c2+"/"+con.c4+"/"+con.c5;
                        dr["inv"]=textBox1.Text;
                        dr["ser"]=textBox2.Text;
                        dr["tipteh"]=comboBox2.Text;
                        dr["datavvoda"]=dateTimePicker1.Value;
                        dr["dataokon"]=dateTimePicker2.Value;                        
                        dr["prim"]=textBox3.Text;
                        nov_teh.Tables["teh"].Rows.Add(dr);
                        
                        ifxDataAdapter2.Update(nov_teh,"teh");