asp.net页面时间实时更新—UpdatePanel的应用

<asp:ScriptManager ID="ScriptManager1" runat="server">

</asp:ScriptManager>



<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">

<ContentTemplate>

<asp:Label ID="lblTime" runat="server" Text=""></asp:Label>

</ContentTemplate>

<Triggers>

<asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" />

</Triggers>

</asp:UpdatePanel>



<asp:Timer ID="Timer1" runat="server" ontick="Timer1_Tick" Interval="1000">

</asp:Timer>



protected void Timer1_Tick(object sender, EventArgs e)

{

this.lblTime.Text = DateTime.Now.ToString("yyyy-MM-dd hh:mm:ss");

}