分享一个导出Excel的类

直接上源码不解释：

 1 using System;

 2 using System.Data;

 3 using System.Configuration;

 4 using System.Linq;

 5 using System.Web;

 6 using System.Web.Security;

 7 using System.Web.UI;

 8 using System.Web.UI.HtmlControls;

 9 using System.Web.UI.WebControls;

10 using System.Web.UI.WebControls.WebParts;

11 using System.Xml.Linq;

12 

13 

14 public static class ExportExcel

15 {

16     public static void ExportByDataSet(DataSet ds, string fileName)

17     {

18         DataTable dtData = ds.Tables[0];

19 

20         //删除列，修改列头显示

21         //dtData.Columns.Remove("");

22         //dtData.Columns[0].ColumnName = "行ID";

23 

24         dtData.AcceptChanges();

25 

26         System.Web.UI.WebControls.GridView dgExport = null;

27         System.Web.HttpContext curContext = System.Web.HttpContext.Current;

28         System.IO.StringWriter strWriter = null;

29         System.Web.UI.HtmlTextWriter htmlWriter = null;

30         System.Web.HttpContext.Current.Response.Clear();

31         System.Web.HttpContext.Current.Response.HeaderEncoding = System.Text.Encoding.GetEncoding("utf-8");

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

33 

34         fileName = fileName + ".xls";

35 

36         curContext.Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(fileName));

37         curContext.Response.ContentEncoding = System.Text.Encoding.UTF8;

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

39         curContext.Response.Charset = "";

40 

41         strWriter = new System.IO.StringWriter();

42         htmlWriter = new System.Web.UI.HtmlTextWriter(strWriter);

43         dgExport = new System.Web.UI.WebControls.GridView();

44         dgExport.DataSource = dtData.DefaultView;

45         dgExport.AllowPaging = false;

46         dgExport.DataBind();

47         dgExport.RenderControl(htmlWriter);

48         curContext.Response.Write(strWriter.ToString());

49         curContext.Response.End();

50     }

51    

52 }

 

使用实例（static 方法，可以被直接调用）：

1 //ds是某DataSet对象，而后面是导出的Excel保存名字

2 ExportExcel.ExportByDataSet(ds, "PDLRFQ-" + DateTime.Now.ToString("yyyyMMdd"));