• asp.net ajax实现在线人员的显示


    vs2005+ajax要实现以前的效果实在是太简单啦.主要大家熟悉了AJAX Extensions几个控件.做起来就是跟以前的效果一样

    大家见code吧

    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="TTimer.aspx.cs" Inherits="TTimer" %>

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

    <html xmlns="http://www.w3.org/1999/xhtml" >
    <head runat="server">
        <title>无标题页</title>
    </head>
    <body>
        <form id="form1" runat="server">
        <div>
            <asp:ScriptManager ID="ScriptManager1" runat="server">
            </asp:ScriptManager>
            <asp:UpdatePanel ID="UpdatePanel1" runat="server">
                <ContentTemplate>
                    <asp:Timer ID="Timer1" runat="server" OnTick="Timer1_Tick">
                    </asp:Timer>
                    <asp:GridView ID="GridView1" runat="server">
                    </asp:GridView>
                </ContentTemplate>
            </asp:UpdatePanel>
       
        </div>
        </form>
    </body>
    </html>

    using System;
    using System.Data;
    using System.Configuration;
    using System.Collections;
    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;

    public partial class TTimer : System.Web.UI.Page
    {
        private DataSet ds = new DataSet();
        protected void Page_Load(object sender, EventArgs e)
        {
            if(!Page.IsPostBack)
            binddata();
        }
        private void binddata()
        {
            string sql = "select   Class_ID,Class_Name,Class_Pid   from   TC_User order   by   Class_ID ";
            string strconn = "Data Source=SEE-CLN-059\\PMSERVER;Initial Catalog=test;uid=sa;pwd=;";
            Conn conn = new Conn(strconn);

            ds = conn.GetSet(sql);
            this.GridView1.DataSource = ds.Tables[0];
            this.GridView1.DataBind();
        }
        protected void Timer1_Tick(object sender, EventArgs e)
        {
            binddata();
        }
    }

    当然遇到异常的情况请自己写异常错误显示吧...

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  • 原文地址:https://www.cnblogs.com/meetweb/p/1247779.html
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