调用此方法时，将带有html设计的整个页面移植到excel以及数据。 我只想要导出数据，不应该带有html设计。我找不到解决办法，请有人帮忙解决这个问题。
public void ExportToExcel(DataTable dtExportData)
{
string strReportName = string.Empty;
//StringWriter oStringWriter = null;
//Html32TextWriter oHtmlTextWriter = null;
//TableOneDayPassReport.Visible = true;
ExcelGrid.EnableViewState = false;
ExcelGrid.DataSource = dtExportData;
ExcelGrid.DataBind();
Response.Clear();
Response.ClearHeaders();
Response.Cache.SetCacheability(HttpCacheability.Private);
Response.AddHeader("content-disposition", "attachment;filename=OwnTransportDetails.xls");
Response.Charset = "";
Response.ContentType = "application/vnd.ms-excel";
System.IO.StringWriter stringWrite = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
//TableOneDayPassReport.RenderControl(htmlWrite);
Response.Write(stringWrite.ToString());
//Response.End();
// strReportName = dtExportData.TableName;
// Report_Month.InnerHtml = "<b>" + strReportName + " Report</b><br />";
// ReportHead.Attributes.Add("style", "DISPLAY: block; VISIBILITY: visible");
// TableOneDayPassReport.Visible = true;
// //oStringWriter = new StringWriter();
// //oHtmlTextWriter = new Html32TextWriter(oStringWriter);
// ExcelGrid.EnableViewState = false;
// ExcelGrid.DataSource = dtExportData;
// ExcelGrid.DataBind();
// Response.Clear();
// Response.Buffer = true;
// Response.AppendHeader("Content-Disposition", "attachment; filename=" + strReportName + ".xls");
// Response.ContentType = "application/vnd.ms-excel";
// TableOneDayPassReport.RenderControl(oHtmlTextWriter);
// Response.Write(oStringWriter.ToString());
// HttpContext.Current.ApplicationInstance.CompleteRequest();
//// Response.End();
}
答案 0 :(得分：0)
您告诉浏览器将数据作为Microsoft Excel处理，但返回HTML数据。 Microsoft Excel非常聪明，可以显示HTML数据并显示数据。
如果您只想导出数据，则应使用EPPlus或Microsoft自己的SDK等库，并在服务器上创建Excel工作表。然后，退回此表。
答案 1 :(得分：0)
通过此代码检查此代码，您可以下载excel格式的.csv文件
这里你需要创建文件夹下载，你需要从该文件夹中提供服务器路径。 href="../../download/Orders.csv"
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.IO;
using System.Text;
public partial class Admin_export_order : System.Web.UI.Page
{
DBAccess dbAcc = new DBAccess();
DataTable dt = new DataTable();
protected void Page_Load(object sender, EventArgs e)
{
if (Session["admin_id"] == null)
Response.Redirect("~/jbs/admin/login");
if (!IsPostBack)
{
view_edit_supplier_BAL objHelp = new view_edit_supplier_BAL();
DataTable dtHelp = objHelp.SearchSupplier("where page = 'export_order'", 18);
if (dtHelp != null && dtHelp.Rows.Count > 0)
lblhelp_msg.Text = dtHelp.Rows[0][0].ToString().Replace("''", "'");
}
StreamWriter sw;
DataSet ds = new DataSet();
export_bal objGet = new export_bal();
ds = objGet.getDetails(5);
try
{
for (int i = 0; i < ds.Tables.Count; i++)
{
sw = new StreamWriter(HttpContext.Current.Server.MapPath("~/download/Orders.csv"), false, Encoding.Unicode);
int iColCount = ds.Tables[i].Columns.Count;
for (int h = 0; h < iColCount; h++)
{
sw.Write(ds.Tables[i].Columns[h]);
if (h < iColCount - 1)
{
sw.Write("\t");
}
}
sw.Write(sw.NewLine);
foreach (DataRow dr in ds.Tables[i].Rows)
{
for (int h = 0; h < iColCount; h++)
{
if (!Convert.IsDBNull(dr[h]))
{
if (dr[h].ToString().Contains("\r\n"))
{
string newdata = dr[h].ToString();
string newcolumn = newdata.Replace("\r\n", "");
sw.Write(newcolumn);
}
else
{
sw.Write(dr[h].ToString());
}
}
if (h < iColCount - 1)
{
sw.Write("\t");
}
}
sw.Write(sw.NewLine);
}
sw.Close();
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
finally
{
}
}
}
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
</head>
<table style="height: auto; width: 99.3%;" cellspacing="0" cellpadding="0" border="0"
align="left" bgcolor="white">
<tr>
<td valign="top" bgcolor="#ffffff" align="left" width="8">
<img height="8" width="8" alt="left bottom" src="../admin/images/top-left-corner.gif" />
</td>
<td bgcolor="#ffffff" width="99%">
</td>
<td bgcolor="#ffffff" align="right" width="8">
<img height="8" width="8" align="right" alt="bottom right" src="../admin/images/right-top-corner.gif" />
</td>
</tr>
<tr>
<td colspan="3" valign="top">
<table bgcolor="#ffffff" width="100%">
<tr>
<td width="36px" style="padding-left: 18px;">
<img src="images/category-img.gif" width="36" height="36" />
</td>
<td class="font_text_bold">
Export Orders
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td colspan="3" valign="top">
<table bgcolor="#ffffff" width="100%" style="height: 660px;">
<tr>
<td valign="top">
<table width="100%">
<tr>
<td colspan="3" valign="top">
<table bgcolor="#ffffff" width="100%" style="padding-left: 7px;">
<tr>
<td>
<table width="99%" cellspacing="0" cellpadding="0" border="0" align="left" style="height: auto;">
<tr class="box_hd_bg_for_every">
<td align="left" valign="top" width="7">
<img src="images/left-add-pro.gif" alt="left" height="29" />
</td>
<td class="font_text_bold" width="100%" align="center" style="padding-right: 200px;
width: 1500px">
Export Setup
</td>
<td align="right">
<img src="images/right-add-pro.gif" alt="right" height="29" />
</td>
</tr>
<tr>
<td class="Gray_blowtr" colspan="3">
<table width="100%" height="100%" border="0" cellpadding="1" cellspacing="0">
<tr>
<td colspan="2" height="10">
</td>
</tr>
<tr>
<td colspan="2" align="left" class="font_text" style="padding-left: 5px;">
Export file will be readable in Microsoft Excel or equivalent applications for ease
review of data. Please click on below download button to Export file for Orders.
</td>
</tr>
<tr>
<td style="height: 20px;">
</td>
</tr>
<tr>
<td colspan="2" align="center" style="height: 30px;">
<a href="../../download/Orders.csv" class="setpostion"> <img style="border: 0"
src="images/download.gif" alt="Download" title="Export" />
</a>
</td>
</tr>
<tr>
<td style="height: 20px;">
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td colspan="3" valign="top">
<table bgcolor="#ffffff" width="100%" style="padding-left: 7px;">
<tr>
<td>
<table width="99%" cellspacing="0" cellpadding="0" border="0" align="left" style="height: auto;">
<tr class="box_hd_bg_for_every">
<td align="left" valign="top" width="7">
<img src="images/left-add-pro.gif" alt="left" height="29" />
</td>
<td class="font_text_bold" width="100%" style="padding-right: 200px">
How to use this page
</td>
<td align="right">
<img src="images/right-add-pro.gif" alt="right" height="29" />
</td>
</tr>
<tr>
<td class="Gray_blowtr" colspan="3" style="padding-left: 10px; padding-right: 10px;
padding-top: 7px; padding-bottom: 7px;">
<asp:Label ID="lblhelp_msg" runat="server" Text=""></asp:Label>
</td>
</tr>
<tr style="height: 20px;">
<td>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td valign="bottom" bgcolor="#ffffff" align="left" width="8">
<img height="8" width="8" alt="left bottom" src="images/bottom-left-corner.gif" />
</td>
<td bgcolor="#ffffff" width="99%">
</td>
<td bgcolor="#ffffff" align="right" width="8">
<img height="8" width="8" align="right" alt="bottom right" src="images/bottom-right-corner.gif" />
</td>
</tr>
</table>
</html>
答案 2 :(得分：0)
我找到了解决方案，请移动Response.End（）; line to onclick事件并调用ExportToExcel（DataTable dtExportData）方法。
和Response.End（）;不应该在try ... catch语句里面，它应该在try ... catch语句之外