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Asp.net gridview implements Scheme 1 of Loading results

Source: Internet
Author: User
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<% @ Page Language = "C #" autoeventwireup = "true" codefile = "default. aspx. cs" inherits = "_ default" %> <! 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"> 

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using System.Data.SqlClient;using System.Data;public partial class _Default : System.Web.UI.Page{           protected void Page_Load(object sender, EventArgs e)    {            }    protected void Button1_Click(object sender, EventArgs e)    {        System.Threading.Thread.Sleep(3000);        databind();    }    public void databind()    {        string sql = "SELECT [orderid], [customerid], [shipvia], [shipname] FROM [orders]";        string con = "Data Source=.;Initial Catalog=northwind;User ID=sa;Password=19790601";        SqlConnection mycon = new SqlConnection(con);        mycon.Open();        SqlDataAdapter mydt = new SqlDataAdapter(sql, mycon);        DataSet ds = new DataSet();        mydt.Fill(ds);        GridView1.DataSource = ds;        GridView1.DataBind();        mycon.Close();    }    protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)    {        GridView1.PageIndex = e.NewPageIndex;        databind();    }}

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