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.Drawing;
using System.IO;
using System.Text;

namespace WebApplication5
{
    public partial class outexcel : System.Web.UI.Page
    {
        SqlConnection sqlcon;
       // SqlCommand sqlcom;
        string strCon = "Data Source=(local);Database=drop;Uid=sa;Pwd=sa123456";
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                bind();

            }
        }
        public void bind()
        {
            string sqlstr = "select  id,createdate from test01";
            sqlcon = new SqlConnection(strCon);
            SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
            DataSet myds = new DataSet();
            sqlcon.Open();
            myda.Fill(myds, "test01");
            GridView1.DataSource = myds;
            GridView1.DataKeyNames = new string[] { "id" };
            GridView1.DataBind();
            sqlcon.Close();
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            Export("application/ms-excel", "name.xls");
        }

        private void Export(string FileType, string FileName)
        {
            Response.Charset = "GB2312";
            Response.ContentEncoding = System.Text.Encoding.UTF7;
            Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
            Response.ContentType = FileType;
            this.EnableViewState = false;
            StringWriter tw = new StringWriter();
            HtmlTextWriter hw = new HtmlTextWriter(tw);
            GridView1.RenderControl(hw);
            Response.Write(tw.ToString());
            Response.End();
        }
        public override void VerifyRenderingInServerForm(Control control)
        {
        }

    }
}