asp.net 页面导出EXCEL

protected void Button1_Click(object sender, EventArgs e)

{

System.Data.DataTable table = QTFactory.BL.rptReport.RptGetUserAnwser(hidID.Value);

DataTable2Excel(table);

}

public static void DataTable2Excel(System.Data.DataTable dtData)

{

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

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

System.IO.StringWriter strWriter = null;

System.Web.UI.HtmlTextWriter htmlWriter = null;

if (dtData != null)

{

curContext.Response.Clear();

curContext.Response.BufferOutput = true;

//解决第一位字符为零时不显示的问题和条码被认定为数字问题。

//string styleText = @"<style> .text { vnd.ms-excel.numberformat:@} </style> ";

//<td style="vnd.ms-excel.numberformat:@"

//设定输出的字符集

curContext.Response.Charset = "GB2312";

//假定导出的文件名为tiaoma.xls

curContext.Response.AppendHeader("Content-Disposition", "attachment;filename= Export.xls");

curContext.Response.ContentEncoding = System.Text.Encoding.UTF8;//System.Text.Encoding.GetEncoding("GB2312");

//设置导出文件的格式

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

//关闭ViewState

//EnableViewState = false;

System.Globalization.CultureInfo cultureInfo = new System.Globalization.CultureInfo("ZH-CN", true);

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

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

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

dgExport.RowDataBound += (GridViewFormat);

dgExport.DataSource = dtData.DefaultView;

dgExport.AllowPaging = false;

dgExport.DataBind();

//GridView1

dgExport.RenderControl(htmlWriter);

//把HTML写回浏览器

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

//指定写入Excel为文本

//curContext.Response.Write(styleText);

curContext.Response.End();

}

}

protected static void GridViewFormat(object sender, GridViewRowEventArgs e)

{

//1） 文本：vnd.ms-excel.numberformat:@

//2） 日期：vnd.ms-excel.numberformat:yyyy/mm/dd

//3） 数字：vnd.ms-excel.numberformat:#,##0.00

//4） 货币：vnd.ms-excel.numberformat:￥#,##0.00

//5） 百分比：vnd.ms-excel.numberformat: #0.00%

for (int i = 0; i < e.Row.Cells.Count; i++)

{

if (e.Row.RowType == DataControlRowType.DataRow)

{

e.Row.Cells[i].Attributes.Add("style", "vnd.ms-excel.numberformat:@");

}

}

}