谁有asp.net导出excel的代码

private void outExcelBtn_ServerClick(object sender, System.EventArgs e)
   {
              string filename = "FileFlow.xls";              OutPutExcel(filename);
   }   public void OutPutExcel(string filename)
   {
                //定义文档类型、字符编码
                Response.Clear();
　　         Response.Buffer= true;
　　         Response.Charset="GB2312";
               //下面这行很重要， attachment 参数表示作为附件下载，您可以改成 online在线打开
　　        //filename=FileFlow.xls 指定输出文件的名称，注意其扩展名和指定文件类型相符，可以为：.doc 　　 .xls 　　 .txt 　　.htm
　　         Response.AppendHeader("Content-Disposition","attachment;filename=" + filename);
　　         Response.ContentEncoding=System.Text.Encoding.GetEncoding("GB2312");
　　        //Response.ContentType指定文件类型可以为application/ms-excel、application/ms-word、application/ms-txt、application/ms-html 或其他浏览器可直接支持文档
　　         Response.ContentType = "application/ms-excel";
　　        this.EnableViewState = false;
              //　定义一个输入流
　　         System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
　　         System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);

               this.dg_xm.RenderControl(oHtmlTextWriter);
              //this.RenderControl(oHtmlTextWriter);
　　        //this 表示输出本页，你也可以绑定datagrid,或其他支持obj.RenderControl()属性的控件
　　         Response.Write(oStringWriter.ToString());
　　         Response.End();
   }

        Response.ClearContent();
        Response.ClearHeaders();        Response.ContentType = "application/vnd.ms-excel";
        Response.Charset = "utf-8";
        Response.ContentEncoding = System.Text.Encoding.GetEncoding("utf-8");        string fileName = HttpUtility.UrlEncode("Employee", System.Text.Encoding.UTF8);        Response.AddHeader("content-disposition","attachment;filename=\"" + fileName + ".xls\"");
        StringWriter sw = new StringWriter();
        HtmlTextWriter htw = new HtmlTextWriter(sw);        GridView1.RenderControl(htw);        Response.Write(sw.ToString());
        Response.End();

#region 导出到excel
    /// <summary>
    /// 导出到excel
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void btnExportExcel_Click(object sender, EventArgs e)
    {
        try
        {
            System.Data.DataTable dt = dtSource;
            string TemplatePath = Server.MapPath(@"Template\Third.xls");
            string ExportPath = Server.MapPath("") + @"\ExportReports";            if (!Directory.Exists(ExportPath))
            {
                Directory.CreateDirectory(ExportPath);
            }            Excel.Application app = new Excel.Application();            if (app == null)
            {
                return;
            }
            app.Visible = false;
            app.UserControl = true;
            Workbooks workbooks = app.Workbooks;
            _Workbook workbook = workbooks.Add(TemplatePath);
            Sheets sheets = workbook.Worksheets;
            _Worksheet worksheet = (_Worksheet)sheets.get_Item(1);            if (worksheet == null)
            {
                return;
            }            int i = 1;            for (; i <= dt.Rows.Count; i++)
            {
                int j = 0;
                worksheet.Cells[i + 2, ++j] = dt.Rows[i - 1]["Month"].ToString().Trim();
                worksheet.Cells[i + 2, ++j] = dt.Rows[i - 1]["PatientTypeName"].ToString().Trim();
                worksheet.Cells[i + 2, ++j] = dt.Rows[i - 1]["OutCount"].ToString().Trim();
                worksheet.Cells[i + 2, ++j] = dt.Rows[i - 1]["BedDayCount"].ToString().Trim();
                worksheet.Cells[i + 2, ++j] = dt.Rows[i - 1]["AverageDay"].ToString().Trim();
                worksheet.Cells[i + 2, ++j] = dt.Rows[i - 1]["TotalCharge"].ToString().Trim();
                worksheet.Cells[i + 2, ++j] = dt.Rows[i - 1]["BedCharge"].ToString().Trim();
                worksheet.Cells[i + 2, ++j] = dt.Rows[i - 1]["MedicineCharge"].ToString().Trim();
                worksheet.Cells[i + 2, ++j] = dt.Rows[i - 1]["CureCharge"].ToString().Trim();
                worksheet.Cells[i + 2, ++j] = dt.Rows[i - 1]["CheckUpCharge"].ToString().Trim();
                worksheet.Cells[i + 2, ++j] = dt.Rows[i - 1]["VerifyCharge"].ToString().Trim();
                worksheet.Cells[i + 2, ++j] = dt.Rows[i - 1]["PerAverageCharge"].ToString().Trim();
                worksheet.Cells[i + 2, ++j] = dt.Rows[i - 1]["DayAverageCharge"].ToString().Trim();
            }            string str = DateTime.Now.ToString("yyyyMMddHHmmss");
            string strExportPath = ExportPath + @"\" + str + ".xls";            workbook.SaveAs(strExportPath, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Excel.XlSaveAsAccessMode.xlNoChange, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);            //结束Excel进程
            Process[] p = Process.GetProcesses();
            for (int x = 0; x < p.Length; x++)
            {
                if (p[x].ProcessName == "EXCEL")
                {
                    p[x].Kill();
                }
            }            app = null;            Response.Redirect("DownLoad.aspx?Path=" + strExportPath);
        }
        catch
        {
            Response.Write("<script>alert('导出失败！！')</script>");
            return;
        }
    }
    #endregion以上是导出到服务器上下面是下载到本地
#region 下载服务器上的文件
    /// <summary>
    /// 下载服务器上的文件
    /// </summary>
    /// <param name="PageResponse">程序中可以设置参数:HttpResponse ht=Page.Response;</param>
    /// <param name="serverPath">服务器上的文件路径</param>
    public void DownloadFile(HttpResponse response, string serverPath)
    {
        FileStream fs = null;
        try
        {
            fs = File.OpenRead(serverPath);
            byte[] buffer = new byte[1024];
            long count = 1024;
            response.Buffer = true;
            response.AddHeader("Connection", "Keep-Alive");
            response.ContentType = "application/octet-stream";
            response.AddHeader("Content-Disposition", "attachment;filename=" + Path.GetFileName(serverPath));//下载时要保存的默认文件名
            response.AddHeader("Content-Length", fs.Length.ToString());
            while (count == 1024)
            {
                count = fs.Read(buffer, 0, 1024);
                response.BinaryWrite(buffer);
            }
        }
        catch
        {
        }
        finally
        {
            fs.Close();
        }
    }
    #endregion

Private Sub outExcelBtn_ServerClick(ByVal sender As Object, ByVal e As System.EventArgs)
    Dim filename As String = "FileFlow.xls"

    OutPutExcel(filename)
End Sub Public Sub OutPutExcel(ByVal filename As String)
    '定义文档类型、字符编码
    Response.Clear()
    Response.Buffer = True
    Response.Charset = "GB2312"
    '下面这行很重要， attachment 参数表示作为附件下载，您可以改成 online在线打开
    'filename=FileFlow.xls 指定输出文件的名称，注意其扩展名和指定文件类型相符，可以为：.doc 　　 .xls 　　 .txt 　　.htm
    Response.AppendHeader("Content-Disposition", "attachment;filename=" & filename)
    Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312")
    'Response.ContentType指定文件类型可以为application/ms-excel、application/ms-word、application/ms-txt、application/ms-html 或其他浏览器可直接支持文档
    Response.ContentType = "application/ms-excel"
    Me.EnableViewState = False
    '　定义一个输入流
    Dim oStringWriter As New System.IO.StringWriter()
    Dim oHtmlTextWriter As New System.Web.UI.HtmlTextWriter(oStringWriter)

    Me.dg_xm.RenderControl(oHtmlTextWriter)
    'this.RenderControl(oHtmlTextWriter);
    'this 表示输出本页，你也可以绑定datagrid,或其他支持obj.RenderControl()属性的控件
    Response.Write(oStringWriter.ToString())
    Response.[End]()
End Sub

1. Asp.net 2.0 GridView数据导出Excel文件(示例代码下载):
   http://blog.csdn.net/ChengKing/archive/2006/08/27/1128385.aspx 2. Asp.net 2.0 装载XML文件中数据到Excel文件中(示例代码下载):
   http://blog.csdn.net/ChengKing/archive/2006/08/10/1045853.aspx 3. 生成/读取(反向更新数据库) Excel文件(示例代码下载):
   http://blog.csdn.net/ChengKing/archive/2005/11/29/539514.aspx

尝试了一下Gridview导出为Excel，原本以为很简单，可是真正应用起来还是不太好弄的，呵呵，所想非所得。总结了一下应该注意下面几点：
1.由于gridview的内容可能是分页显示的，因此，这里在每次导出excel时，先将gridview的allowpaging属性设置为false，然后databind()一下，确保搂到所有数据；
2.不用单独设置导出的路径，导出时会弹出对话框让你确认保存位置；
3.要写一个空的VerifyRenderingInServerForm方法（必须写），以确认在运行时为指定的ASP.NET  服务器控件呈现HtmlForm 控件；
4.导出后别忘记再重新设置其allowpaging属性；
    当我把这些都设置好以后，点击[导出]，出现了只能在执行 Render() 的过程中调用 RegisterForEventValidation(RegisterForEventValidation can only be  called during Render(); )
的错误，又检查代码，没发现问题啊，搞了一会弄不出来，然后搜索了一下，发现了解决办法：
修改你的aspx文件中的：
<%@ Page  Language="C#" EnableEventValidation = "false" AutoEventWireup="true"  CodeFile="SysUser.aspx.cs" Inherits="Autho_SysUser2" %>
增加红色的部分就ok了。
    public override void  VerifyRenderingInServerForm(Control control)
    {
        // Confirms  that an HtmlForm control is rendered for
    }    public static  void ToExcel(Control ctl, string FileName)
    {
        HttpContext.Current.Response.Charset = "gb2312";
        HttpContext.Current.Response.ContentEncoding =  System.Text.Encoding.Default;
        HttpContext.Current.Response.ContentType = "application/ms-excel";
        HttpContext.Current.Response.AppendHeader("Content-Disposition",  "attachment;filename=" + "" + FileName);
        ctl.Page.EnableViewState =  false;
        System.IO.StringWriter tw = new System.IO.StringWriter();
        HtmlTextWriter hw = new HtmlTextWriter(tw);
        ctl.RenderControl(hw);
        HttpContext.Current.Response.Write(tw.ToString());
        HttpContext.Current.Response.End();
    }但是一试,便出现了乱码,解决方案如下
    public static void Export(System.Web.UI.Page page, System.Web.UI.Control  dg, string fileName, string typeName)
    {
        System.Web.HttpResponse httpResponse =page.Response;
        httpResponse.AppendHeader
                              ("Content-Disposition", "attachment;filename="
                               + HttpUtility.UrlEncode(fileName,  System.Text.Encoding.UTF8));
        httpResponse.ContentEncoding =  System.Text.Encoding.GetEncoding("GB2312");
        httpResponse.ContentType  = typeName;
        System.IO.StringWriter tw = new  System.IO.StringWriter();
        System.Web.UI.HtmlTextWriter hw = new  System.Web.UI.HtmlTextWriter(tw);
        dg.RenderControl(hw);
        string filePath = page.Server.MapPath("..") + fileName;
        System.IO.StreamWriter sw = System.IO.File.CreateText(filePath);
        sw.Write(tw.ToString());
        sw.Close();

        DownFile(httpResponse, fileName, filePath);
        httpResponse.End();
    }
    public static bool  DownFile(System.Web.HttpResponse Response, string fileName, string fullPath)
    {
        try
        {
            Response.ContentType =  "application/octet-stream";
            Response.AppendHeader("Content-Disposition",  "attachment;filename=" +
                HttpUtility.UrlEncode(fileName,  System.Text.Encoding.UTF8) + ";charset=GB2312");
            System.IO.FileStream fs = System.IO.File.OpenRead(fullPath);
            long fLen = fs.Length;
            int size =  102400;//每100K同时下载数据
            byte[] readData = new byte[size];//指定缓冲区的大小
            if (size > fLen) size = Convert.ToInt32(fLen);
            long fPos = 0;
            bool isEnd = false;
            while (!isEnd)
            {
                if ((fPos +  size) > fLen)
                {
                    size =  Convert.ToInt32(fLen - fPos);
                    readData = new byte[size];
                    isEnd = true;
                }
                fs.Read(readData, 0, size);//读入一个压缩块
                Response.BinaryWrite(readData);
                fPos +=  size;
            }
            fs.Close();
            System.IO.File.Delete(fullPath);
            return true;
        }
        catch
        {
            return false;
        }
    }
怎么调用?? 其实就是怎么调用Export这个函数罢了.  以上方法可以很有效地解决导出的乱码问题

http://www.crazycoder.cn/DotNet/Article21807.html
参考
http://topic.csdn.net/t/20060421/14/4703905.html

asp.net页面导出为Excel文档
http://www.code-123.com/html/20087151126531090290.html
Asp.Net页面输出到EXCEL
http://www.code-123.com/html/20087151126531054137.html
asp.net教程

可以看一下这个。
asp.net导出Excel

调试易

谁有asp.net导出excel的代码

解决方案 »