asp.net Timer的使用方法
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head id="Head1" runat="server"> <title>Untitled Page</title> <style type="text/css"> #UpdatePanel3 { border-right: gray 1px solid; border-top: gray 1px solid; border-left: gray 1px solid; border-bottom: gray 1px solid; width:200px; height:200px; position: relative; float: left; margin-left: 10px; margin-top: 10px; } </style> </head> <body> <form id="form1" runat="server"> <asp:ScriptManager ID="ScriptManager1" runat="server" /> <asp:UpdatePanel ID="UpdatePanel3" runat="server"> <ContentTemplate> <asp:Timer ID="Timer1" runat="server" Interval="1000" OnTick="Timer1_Tick"> </asp:Timer> <asp:Label ID="Label3" runat="server" Text="Label"></asp:Label><br /> </ContentTemplate> </asp:UpdatePanel> <asp:Label ID="Label4" runat="server" Text="Label"></asp:Label> </form> </body> </html>?using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Threading; public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { Label4.Text = "初始化时间：" + DateTime.Now.ToString(); Timer1.Interval = 1000; } protected void Timer1_Tick(object sender, EventArgs e) { Label3.Text = "刷新时间：" + DateTime.Now.ToString(); } }?