gridView导出Excel问题？？

你的代码怎么写的？1、由datagrid生成 public void ToExcel(System.Web.UI.Control ctl)
  {
   HttpContext.Current.Response.AppendHeader("Content-Disposition","attachment;filename=Excel.xls");
   HttpContext.Current.Response.Charset ="UTF-8";
   HttpContext.Current.Response.ContentEncoding =System.Text.Encoding.Default;
   HttpContext.Current.Response.ContentType ="application/ms-excel";//image/JPEG;text/HTML;image/GIF;vnd.ms-excel/msword
   ctl.Page.EnableViewState =false;
   System.IO.StringWriter  tw = new System.IO.StringWriter() ;
   System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter (tw);
   ctl.RenderControl(hw);
   HttpContext.Current.Response.Write(tw.ToString());
   HttpContext.Current.Response.End();
  }

用法：ToExcel(datagrid1);
2、这个用dataview public void OutputExcel(DataView dv,string str)
{
   //
   // TODO: 在此处添加构造函数逻辑
   //
                           //dv为要输出到Excel的数据，str为标题名称
   GC.Collect();
   Application excel;// = new Application();
   int rowIndex=4;
   int colIndex=1;

   _Workbook xBk;
   _Worksheet xSt;

   excel= new ApplicationClass();

   xBk = excel.Workbooks.Add(true);

   xSt = (_Worksheet)xBk.ActiveSheet;

   //
   //取得标题
   //
   foreach(DataColumn col in dv.Table.Columns)
   {
    colIndex++;
    excel.Cells[4,colIndex] = col.ColumnName;
    xSt.get_Range(excel.Cells[4,colIndex],excel.Cells[4,colIndex]).HorizontalAlignment = XlVAlign.xlVAlignCenter;//设置标题格式为居中对齐
   }

   //
   //取得表格中的数据
   //
   foreach(DataRowView row in dv)
   {
    rowIndex ++;
    colIndex = 1;
    foreach(DataColumn col in dv.Table.Columns)
    {
     colIndex ++;
     if(col.DataType == System.Type.GetType("System.DateTime"))
     {
      excel.Cells[rowIndex,colIndex] = (Convert.ToDateTime(row[col.ColumnName].ToString())).ToString("yyyy-MM-dd");
      xSt.get_Range(excel.Cells[rowIndex,colIndex],excel.Cells[rowIndex,colIndex]).HorizontalAlignment = XlVAlign.xlVAlignCenter;//设置日期型的字段格式为居中对齐
     }
     else
      if(col.DataType == System.Type.GetType("System.String"))
     {
      excel.Cells[rowIndex,colIndex] = "'"+row[col.ColumnName].ToString();
      xSt.get_Range(excel.Cells[rowIndex,colIndex],excel.Cells[rowIndex,colIndex]).HorizontalAlignment = XlVAlign.xlVAlignCenter;//设置字符型的字段格式为居中对齐
     }
     else
     {
      excel.Cells[rowIndex,colIndex] = row[col.ColumnName].ToString();
     }
    }
   }
   //
   //加载一个合计行
   //
   int rowSum = rowIndex + 1;
   int colSum = 2;
   excel.Cells[rowSum,2] = "合计";
   xSt.get_Range(excel.Cells[rowSum,2],excel.Cells[rowSum,2]).HorizontalAlignment = XlHAlign.xlHAlignCenter;
   //
   //设置选中的部分的颜色
   //
   xSt.get_Range(excel.Cells[rowSum,colSum],excel.Cells[rowSum,colIndex]).Select();
   xSt.get_Range(excel.Cells[rowSum,colSum],excel.Cells[rowSum,colIndex]).Interior.ColorIndex = 19;//设置为浅黄色，共计有56种
   //
   //取得整个报表的标题
   //
   excel.Cells[2,2] = str;
   //
   //设置整个报表的标题格式
   //
   xSt.get_Range(excel.Cells[2,2],excel.Cells[2,2]).Font.Bold = true;
   xSt.get_Range(excel.Cells[2,2],excel.Cells[2,2]).Font.Size = 22;
   //
   //设置报表表格为最适应宽度
   //
   xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,colIndex]).Select();
   xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,colIndex]).Columns.AutoFit();
   //
   //设置整个报表的标题为跨列居中
   //
   xSt.get_Range(excel.Cells[2,2],excel.Cells[2,colIndex]).Select();
   xSt.get_Range(excel.Cells[2,2],excel.Cells[2,colIndex]).HorizontalAlignment = XlHAlign.xlHAlignCenterAcrossSelection;
   //
   //绘制边框
   //
   xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,colIndex]).Borders.LineStyle = 1;
   xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,2]).Borders[XlBordersIndex.xlEdgeLeft].Weight = XlBorderWeight.xlThick;//设置左边线加粗
   xSt.get_Range(excel.Cells[4,2],excel.Cells[4,colIndex]).Borders[XlBordersIndex.xlEdgeTop].Weight = XlBorderWeight.xlThick;//设置上边线加粗
   xSt.get_Range(excel.Cells[4,colIndex],excel.Cells[rowSum,colIndex]).Borders[XlBordersIndex.xlEdgeRight].Weight = XlBorderWeight.xlThick;//设置右边线加粗
   xSt.get_Range(excel.Cells[rowSum,2],excel.Cells[rowSum,colIndex]).Borders[XlBordersIndex.xlEdgeBottom].Weight = XlBorderWeight.xlThick;//设置下边线加粗
   //
   //显示效果
   //
   excel.Visible=true;

   //xSt.Export(Server.MapPath(".")+"\\"+this.xlfile.Text+".xls",SheetExportActionEnum.ssExportActionNone,Microsoft.Office.Interop.OWC.SheetExportFormat.ssExportHTML);
   xBk.SaveCopyAs(Server.MapPath(".")+"\\"+this.xlfile.Text+".xls");

   ds = null;
            xBk.Close(false, null,null);

            excel.Quit();
            System.Runtime.InteropServices.Marshal.ReleaseComObject(xBk);
            System.Runtime.InteropServices.Marshal.ReleaseComObject(excel);
    System.Runtime.InteropServices.Marshal.ReleaseComObject(xSt);
            xBk = null;
            excel = null;
   xSt = null;
            GC.Collect();
   string path = Server.MapPath(this.xlfile.Text+".xls");

   System.IO.FileInfo file = new System.IO.FileInfo(path);
   Response.Clear();
   Response.Charset="GB2312";
   Response.ContentEncoding=System.Text.Encoding.UTF8;
   // 添加头信息，为"文件下载/另存为"对话框指定默认文件名
   Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(file.Name));
   // 添加头信息，指定文件大小，让浏览器能够显示下载进度
   Response.AddHeader("Content-Length", file.Length.ToString());

   // 指定返回的是一个不能被客户端读取的流，必须被下载
   Response.ContentType = "application/ms-excel";

   // 把文件流发送到客户端
   Response.WriteFile(file.FullName);
   // 停止页面的执行

   Response.End();
}

    protected void Button1_Click(object sender, EventArgs e)
    {
        GridView gridView = this.GridView1;
        if (gridView.Rows.Count == 0)
        {           Response.Write("<script>alert('没有数据可导出！')</script>");
            return;
        }
        //决定输出的列
        if (this.CbStudentID.Checked != true)
            gridView.Columns[0].Visible = false;
        if (this.CbStudentName.Checked != true)
            gridView.Columns[1].Visible = false;
        if (this.CbSex.Checked != true)
            gridView.Columns[2].Visible = false;
        if (this.CbBirth.Checked != true)
            gridView.Columns[3].Visible = false;
        if (this.CbESystem.Checked != true)
            gridView.Columns[4].Visible = false;
        if (this.CbGrade.Checked != true)
            gridView.Columns[5].Visible = false;
        if (this.CbDepartmentName.Checked != true)
            gridView.Columns[6].Visible = false;
        if (this.CbMajorName.Checked != true)
            gridView.Columns[7].Visible = false;
        if (this.CbClassName.Checked != true)
            gridView.Columns[8].Visible = false;
                DeExcel( "学生信息表", gridView);    }
public override void VerifyRenderingInServerForm(Control control)
    {

    }    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {            e.Row.Cells[1].Attributes.Add("style", "vnd.ms-excel.numberformat:@;");        }    } private void DeExcel(string fileName,GridView gridView)
    {
                Response.Clear ();
        Response.Buffer = true;
        Response.Charset = "GB2312";
        Response.AppendHeader("Content-Disposition", "attachment;filename=\"" + System.Web.HttpUtility.UrlEncode(fileName .ToString (), System.Text.Encoding.UTF8) + ".xls\"");
        Response.ContentEncoding = System.Text.Encoding.UTF8;
        Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。
        StringWriter oStringWriter = new StringWriter();
        HtmlTextWriter oHtmlTextWriter = new HtmlTextWriter(oStringWriter);
        gridView.RenderControl(oHtmlTextWriter);
        Response.Output.Write(oStringWriter.ToString());
        Response.Flush();
        Response.End();
    }

设置你的Response.ContentEncoder = System.Text.Encoding.GetEncoding("gb2312")

// 如果设置为 GetEncoding("GB2312");导出的文件将会出现乱码！！！
Response.ContentEncoding = System.Text.Encoding.UTF7;

http://dotnet.aspx.cc/article/700bd3fa-a17f-41dc-b258-0dc572625700/read.aspx

得了!!给分啦!!
private void DeExcel(string fileName,GridView gridView)
    {
                Response.Clear ();
        Response.Buffer = true;
        Response.Charset = "GB2312";
        Response.AppendHeader("Content-Disposition", "attachment;filename=\"" + System.Web.HttpUtility.UrlEncode(fileName .ToString (), System.Text.Encoding.UTF8) + ".xls\"");
        Response.ContentEncoding = System.Text.Encoding.UTF7;
        Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。
        StringWriter oStringWriter = new StringWriter();
        HtmlTextWriter oHtmlTextWriter = new HtmlTextWriter(oStringWriter);
        gridView.RenderControl(oHtmlTextWriter);
        Response.Output.Write(oStringWriter.ToString());
        Response.Flush();
        Response.End();
    }

调试易

gridView导出Excel问题？？

解决方案 »