ASP.NET datable导出excel

本文转载：http://www.cnblogs.com/chwkai/archive/2005/10/08/250426.html

不错的文章：http://www.cnblogs.com/lzhp/archive/2012/08/02/2680763.html

不错文章：http://hcyu2012.blog.163.com/blog/static/165192580201132532526918/

 public void DataTable2Excel(DataTable dtData)
        {

            if (dtData != null)
            {

                Response.Clear();
                Response.Charset = "utf-8";
                Response.AppendHeader("Content-Disposition", "attachment;filename= " + Server.UrlEncode("导出.xls"));
                Response.ContentEncoding = System.Text.Encoding.GetEncoding("utf-8");
                Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件.
                this.EnableViewState = false;
                System.Globalization.CultureInfo myCItrad = new System.Globalization.CultureInfo("ZH-CN", true);
                System.IO.StringWriter stringWrite = new System.IO.StringWriter(myCItrad);
                System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);

                //// 为了解决dgData中可能进行了分页的情况，需要重新定义一个无分页的DataGrid
                //System.Web.UI.WebControls.GridView dgExport = null;
                //dgExport = new System.Web.UI.WebControls.GridView();
                GridView dgExport = new GridView();
                dgExport.AllowPaging = false;
                dgExport.DataSource = dtData;
                dgExport.DataBind();
                for (int i = 1; i < dgExport.Rows.Count; i++)
                {
                    dgExport.Rows[i].Cells[0].Attributes.Add("style", "mso-number-format:'0'");
                    dgExport.Rows[i].Cells[2].Attributes.Add("style", "mso-number-format:'\\@'");
                }

                dgExport.RenderControl(htmlWrite);
                Response.Write(stringWrite.ToString());
               Response.Write(@"<style> .text { mso-number-format:'\\@';} </script> ");
                Response.End();   

            }
        }

GridView export to excel 格式参考

mso-number-format:"0" NO Decimals
mso-number-format:"0\.000" 3 Decimals
mso-number-format:"\#\,\#\#0\.000" Comma with 3 dec
mso-number-format:"mm\/dd\/yy" Date7
mso-number-format:"mmmm\ d\,\ yyyy" Date9
mso-number-format:"m\/d\/yy\ h\:mm\ AM\/PM" D -T AMPM
mso-number-format:"Short Date" 01/03/1998
mso-number-format:"Medium Date" 01-mar-98
mso-number-format:"d\-mmm\-yyyy" 01-mar-1998
mso-number-format:"Short Time" 5:16
mso-number-format:"Medium Time" 5:16 am
mso-number-format:"Long Time" 5:16:21:00
mso-number-format:"Percent" Percent - two decimals
mso-number-format:"0%" Percent - no decimals
mso-number-format:"0\.E+00" Scientific Notation
mso-number-format:"\@" Text
mso-number-format:"\#\ ???\/???" Fractions - up to 3 digits (312/943)
mso-number-format:"\0022?\0022\#\,\#\#0\.00" ?12.76
mso-number-format:"\#\,\#\#0\.00_ \;\[Red\]\-\#\,\#\#0\.00\ " 2 decimals, negative numbers in red and signed
(1.56   -1.56)