UpdatePanel异步回送实例

寒木萧条 2010-10-10

展开全文

UpdatePanel异步回送实例

前台代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="test04_updatePanel.aspx.cs" Inherits="test04_updatePanel" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www./TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www./1999/xhtml">
<head runat="server">
    <title>Untitled Page</title>
    <style type="text/css">
         body { background-attachment:fixed;
                background-image:url(Blue hills.jpg);
                }
    </style>

</head>
<body>
    <form id="form1" runat="server">
        <div>
            <asp:ScriptManager ID="ScriptManager1"     runat="server">
            </asp:ScriptManager>
        </div>
        <asp:UpdatePanel ID="uid" runat="server">
            <ContentTemplate>
                <div >
                    <asp:Button ID="Button1" runat="server" Text="异步回送" OnClick="Button1_Click1" />
                    <asp:Button ID="Button2" runat="server" Text="整页回送" OnClick="Button2_Click" /><br />
                    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" Width="197px">
                        <Columns>
                            <asp:BoundField DataField="au_lname" FooterText="aaaa" HeaderText="au_lname" />
                        </Columns>
                    </asp:GridView>
                    <br />
                   <asp:Label ID="Label1" runat="server" Text="当前时间" Font-Bold="True" Font-Size="Large"></asp:Label>
                  </div>
            </ContentTemplate>
            <Triggers>
                <asp:AsyncPostBackTrigger    ControlID="Button1" />
                <asp:PostBackTrigger ControlID="Button2" />
            </Triggers>
        </asp:UpdatePanel>
    </form>
</body>
</html>

后台代码：

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;
using System.Web.Configuration;

public partial class test04_updatePanel : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

    }
     protected void Button1_Click1(object sender, EventArgs e)
    {
        SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["teachdbConn"].ConnectionString);
        string sql1 = "select top 5 s_name as au_lname from student ";
        SqlDataAdapter myAdapter = new SqlDataAdapter(sql1, conn);
        DataSet ds = new DataSet();
        myAdapter.Fill(ds, "bieminG");
        //来自web service的dataset,这里随便一个ds就可以;
        this.GridView1.DataSource = ds.Tables["bieminG"].DefaultView; ;
        this.GridView1.DataBind(); //数据绑定
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        this.Label1.Text = "11111";
    }
}