GridView导出Excel方法
一、引用如下命名空间
using System.IO;
using System.Text;
二、详细代码

方法一:将代码直接写在页面


    /// <summary>
    /// 数据导出
    /// </summary>
    /// <param name="FileType"></param>
    /// <param name="FileName"></param>
    private void Export(string FileType, string FileName)
    {
        Response.Charset = "GB2312";
        Response.ContentEncoding = System.Text.Encoding.UTF8;//注意编码
        Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
        Response.ContentType = FileType;
        this.EnableViewState = false;
        StringWriter tw = new StringWriter();
        HtmlTextWriter hw = new HtmlTextWriter(tw);
        gridGatewayDetails.RenderControl(hw);
        Response.Write(tw.ToString());
        Response.End();
    }

方法二、将以上代码改进成公共方法:


    /// <summary>
    /// 将网格数据导出到Excel
    /// </summary>
    /// <param name="ctrl">网格名称(如GridView1)</param>
    /// <param name="FileType">要导出的文件类型(Excel:application/ms-excel)</param>
    /// <param name="FileName">要保存的文件名</param>
    public static void GridViewToExcel(Control ctrl, string FileType, string FileName)
    {
        HttpContext.Current.Response.Charset = "GB2312";
        HttpContext.Current.Response.ContentEncoding = Encoding.UTF8;//注意编码
        HttpContext.Current.Response.AppendHeader("Content-Disposition",
            "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
        HttpContext.Current.Response.ContentType = FileType;//image/JPEG;text/HTML;image/GIF;vnd.ms-excel/msword
        ctrl.Page.EnableViewState = false;
        StringWriter tw = new StringWriter();
        HtmlTextWriter hw = new HtmlTextWriter(tw);
        ctrl.RenderControl(hw);
        HttpContext.Current.Response.Write(tw.ToString());
        HttpContext.Current.Response.End();
    }

三、注意事项:

在导出的时候,如果某个字段为长数字(如身份证号码511922198507151512)、以0开头的编号(如0809111212)之类的数据。如果不加处理在导出的Excel文件中将会被分别当作5.11922E+17和809111212来处理,这样与我们要达到 的实际效果不一致。所以我们要加以处理,即给单元格数据规定格式。常见的格式如下:

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%

使用方法如下:

//给第一个单元格设置格式为

e.Item.Cells[0].Attributes.Add("style","vnd.ms-excel.numberformat:@");

//给第四个单元格设置格式为
e.Item.Cells[3].Attributes.Add("style","vnd.ms-excel.numberformat:¥#,###.00");


本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/suchgoingdown/archive/2009/03/10/3977013.aspx

posted on 2010-02-21 11:25  itzsl  阅读(377)  评论(0编辑  收藏  举报