asp.net导出Excel

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分享一个asp.net 导出假Excel代码。优点，不用借助于任何插件比如（NPOI）,复制代码，修改grid.DataSource直接导出。

先看导出后的效果图

 1 System.Web.UI.WebControls.DataGrid grid = new DataGrid();
 2                 grid.CellSpacing = 6;
 3                 grid.CellPadding = 6;
 4                 grid.EnableViewState = false;
 5                 grid.DataSource = tableCars;
 6                 grid.DataBind();
 7                 foreach (DataGridColumn clos in grid.Columns)
 8                 {
 9                     clos.HeaderStyle.Width = 200;
10                     clos.ItemStyle.Width = 200;
11                 }
12                 System.IO.StringWriter tw = new System.IO.StringWriter();
13                 HtmlTextWriter hw = new HtmlTextWriter(tw);
14                 grid.RenderControl(hw);
15                 string fileName = System.Web.HttpUtility.UrlEncode(DateTime.Now.ToString("yyyyMMddHHmmss") + ".xls", System.Text.Encoding.UTF8);
16                 HttpContext.Current.Response.Charset = "utf-8";
17                 HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.UTF8;
18                 HttpContext.Current.Response.ContentType = "application/ms-excel";
19                 HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + fileName);
20                 HttpContext.Current.Response.Write(tw.ToString());
21                 HttpContext.Current.Response.End();