Asp.net 导出Excel 和Word

/// <summary>

/// 导出 Excel 文件

/// </summary>

/// <param name="ds">数据集</param>

/// <param name="fileName">Excel 文件名(不含扩展名)</param>

public static void ToExcel(DataTable dt, string fileName)

{

System.IO.StringWriter tw = new System.IO.StringWriter();

System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter(tw);

GridView gv = new GridView();

gv.RowDataBound += new GridViewRowEventHandler(gv_RowDataBound);

gv.DataSource = dt;

gv.DataBind();

gv.RenderControl(hw);

System.Web.HttpResponse Response = System.Web.HttpContext.Current.Response;

Response.Clear();

Response.Charset = "gb2312";

Response.ContentType = "application/vnd.ms-excel";

Response.AppendHeader("Content-Disposition", "attachment;filename=" + System.Web.HttpUtility.UrlEncode(fileName) + ".xls");

Response.Write("<html><head><META http-equiv=\"Content-Type\" content=\"text/html; charset=gb2312\"></head><body>");

Response.Write(tw.ToString());

Response.Write("</body></html>");

Response.End();

hw.Close();

hw.Flush();

gv.Dispose();

tw.Close();

tw.Flush();

}