using System;
using System.Data;
using System.Configuration;
using System.IO;
using System.Text;
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;

namespace view.App_Code
{
    /// <summary>
    /// utils 的摘要说明
    /// </summary>
    public class ExcelExp
    {
        public ExcelExp()
        {
            //
            // TODO: 在此处添加构造函数逻辑
            //
        }

 
        public static void Export(GridView GridView1, DataView dv ,ScriptManager sm,Control Button1,string fileName, Page page )
        {
             sm.RegisterPostBackControl(Button1);
            GridView1.AllowPaging = false;
            GridView1.Columns[GridView1.Columns.Count-1].Visible = false;
            GridView1.DataSource = dv;
            GridView1.DataBind();
            
           
            HttpContext.Current.Response.Charset = "GB2312";
            HttpContext.Current.Response.ContentEncoding = Encoding.UTF7;
            HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(fileName + ".xls", Encoding.UTF8).ToString());
            HttpContext.Current.Response.ContentType = "application/ms-excel";
            page.EnableViewState = false;
            StringWriter tw = new StringWriter();
            HtmlTextWriter hw = new HtmlTextWriter(tw);
            GridView1.RenderControl(hw);
            HttpContext.Current.Response.Write(tw.ToString());
            HttpContext.Current.Response.End();

            GridView1.AllowPaging = false;
            GridView1.Columns[GridView1.Columns.Count - 1].Visible = true;
            GridView1.DataSource = dv;
            GridView1.DataBind();
        }

    }
}