Excel 导出的方法 之二

// <summary>
/// 导出到Excel lichenghu
///
</summary>
/// <param name="dt"></param>

public static void ToExcel(DataTable dt)
{
string sb =
"";

foreach (DataRow dr in dt.Rows)
{

for (int i = 0; i < dt.Columns.Count; i++)
{

sb = sb + dr[i].ToString() + "\t";
}

sb = sb + "\n";
}

HttpContext.Current.Response.AppendHeader("Content-Disposition",
"attachment;filename=MyExcel.xls");

HttpContext.Current.Response.Charset = "UTF-8";

HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.Default;

HttpContext.Current.Response.ContentType =
"application/ms-excel";

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

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

hw.WriteLine(sb.ToString());

HttpContext.Current.Response.Write(tw.ToString());

HttpContext.Current.Response.End();

hw.Flush();
hw.Close();

tw.Flush();
tw.Close();
}