更新内容页面主页定时器TIck上的控件

I have a master page it has

我有一个母版页面

<asp:Timer ID="masterTimer" runat="server" Interval="1000" OnTick="masterTimer_Tick"/>
        <asp:UpdatePanel runat="server" ID="time" UpdateMode="Always" ChildrenAsTriggers="True">
            <Triggers>
                <asp:AsyncPostBackTrigger ControlID="masterTimer" EventName="Tick"/>
            </Triggers>
            <ContentTemplate>
                <asp:Label runat="server" ID="lblTime"></asp:Label>
            </ContentTemplate>
        </asp:UpdatePanel>
<asp: