给删除按扭添加删除确定框

<asp:TemplateField HeaderText="删除" ShowHeader="False">
                    <ItemTemplate>
                        <asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Delete"
                            OnClientClick='return confirm("确认要删除吗？")' Text="删除"></asp:LinkButton>
                    </ItemTemplate>
                </asp:TemplateField>