<asp:GridView ID="GV1" runat="server" AutoGenerateColumns="False" DataKeyNames="IDClassifica" DataSourceID="SqlDataSource1">
            <Columns>
                <asp:BoundField DataField="Squadra" HeaderText="Squadra" ReadOnly="True" SortExpression="Squadra" />
                <asp:BoundField DataField="Punti" HeaderText="Punti" SortExpression="Punti" />
                <asp:BoundField DataField="IDClassifica" HeaderText="IDClassifica" InsertVisible="False"
                    ReadOnly="True" SortExpression="IDClassifica" Visible="False" />
                <asp:CommandField CancelText="Annulla" EditText="Modifica" ShowEditButton="True"
                    UpdateText="Aggiorna" />
            </Columns>
        </asp:GridView>