一、导出表格数据到excel.
public static void ExportExcel(System.Data.DataTable dt, string sequenceHeader) { System.Text.StringBuilder stringBuilder = new System.Text.StringBuilder(); stringBuilder.Append("<html><head><meta http-equiv="content-type" content="text/html; charset=gb2312"/>"); stringBuilder.Append("<table border=1 style='font-size:12px'>"); stringBuilder.Append("<tr>"); for (int i = 0; i < dt.Columns.Count; i++) { string columnName = dt.Columns[i].ColumnName; if (!(columnName == "InstanceId")) { stringBuilder.AppendFormat("<th>{0}</th>", columnName); } } for (int i = 0; i < dt.Rows.Count; i++) { stringBuilder.Append("<tr>"); for (int j = 0; j < dt.Columns.Count; j++) { string arg = string.Empty; arg = dt.Rows[i][j].ToString(); stringBuilder.AppendFormat("<td>{0}</td>", arg); } stringBuilder.Append("</tr>"); } stringBuilder.Append("</tr>"); stringBuilder.Append("</table>"); stringBuilder.Append("</body></html>"); byte[] array = new byte[stringBuilder.Length]; array = System.Text.Encoding.GetEncoding(936).GetBytes(stringBuilder.ToString()); string text3 = System.Guid.NewGuid().ToString(); string str = text3; HttpContext.Current.Response.Clear(); HttpContext.Current.Response.AddHeader("Content-Length", array.Length.ToString()); HttpContext.Current.Response.ContentType = "application/octet-stream"; HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlPathEncode(str) + ".xls"); HttpContext.Current.Response.OutputStream.Write(array, 0, array.Length); HttpContext.Current.Response.End(); }