Display selected gridview row on text boxes in C#

How can I display the row I select in my  RAD grid view and display it in my Textboxes ......

this is how I display my rows in my telerik rad gridview

          oRow.Item("Del_Number") = txtDel_Number.Text
            oRow.Item("Del_Address1") = txtDel_Address1.Text
            oRow.Item("Del_Address2") = txtDel_Address2.Text
            oRow.Item("Del_Address3") = txtDel_Address3.Text
            oRow.Item("Del_Address4") = txtDel_Address4.Text
            oRow.Item("Del_Address5") = txtDel_Address5.Text
            oRow.Item("Client_Name") = CustomerNameTextBox.Text
            oRow.Item("Dispatch_Instructions") = txtDispatch_Instructions.Text
            oRow.Item("Operations_Instructions") = txtOperations_Instructions.Text
            oRow.Item("Type") = txtType.Text
            tblDeliveries.Rows.Add(oRow)