ASP.NET 将转发器导出到 excel，excel 文件打开时出现错误“'RepeaterExport.xls' 的文件格式和扩展名不匹配

Question

我正在进行导出工作，以提高性能，因此我将转发器数据导出到 excel。

这是我的转发器aspx

 <asp:Repeater runat="server" ID="rpEmployee" DataSourceID="dsEmployee" OnItemDataBound="rpemployee_ItemDataBound">
    <HeaderTemplate>
        <table id="EmployeeTbl" class="display">
            <thead>
                <tr>
                    <th><input type="checkbox" onclick="SelectAll(this)" /></th>
                    <th align="left">Name</th>
                    <th>Origin Ctry</th>
                    <th>Passport No</th>
                    <th>Passport Expired On</th>
                    <th>Permit Expired On</th>
                    <th align="left">Operating Centre</th>
                    <th align="left">Kdn File</th>
                    <th>Submission Batch</th>
                    <th>Submitted To MyEG On</th>
                    <th>Status</th>
                    <th>Last Updated On</th>
                    <th>Payment Ref</th>
                </tr>
            </thead>
            <tbody>
    </HeaderTemplate>
    <ItemTemplate>
        <tr>
            <td class="cmd">
                <asp:CheckBox runat="server" ID="chkSelect" />
                <asp:HiddenField runat="server" ID="EmployeeId" Value='<%#Eval("EmployeeId") %>' />
                <asp:HiddenField runat="server" ID="PPBatchEmployeeId" Value='<%#Eval("PPBatchEmployeeId") %>' />
            </td>
            <td><a href='../workers/FWBiodata.aspx?Id=<%#Eval("EmpRowGuid") %>'><%#Eval("EmployeeName")%> <span style="color: red"><%#(bool)(Eval("Employee.SLTag"))?"(SL)":"" %></span></a></td>
            <td class="cmd"><%#Eval("OriginCtry")%></td>
            <td class="cmd"><%#Eval("PassportNo")%></td>
            <td class="cmd"><%#AppLib.Format.Date(Eval("PassportExpireOn"))%></td>
            <td class="cmd"><%#AppLib.Format.Date(Eval("PermitExpireOn"))%></td>
            <td><%#Eval("OCName")%></td>
            <td><%#Eval("KdnFileNo") %></td>
            <td class="cmd"><%#Eval("PPDeliveryBatchId.ReferenceNo")%></td>
            <td class="cmd"><%#AppLib.Format.AppDateTime(Eval("SubmitToMyEGOn"))%></td>
            <td class="cmd"><%#Eval("PPStatus.Status") %></td>
            <td class="cmd"><%#AppLib.Format.AppDateTime(Eval("LastUpdatedOn"))%></td>
            <td><asp:Label ID="lblPymtReferenceNo" runat="server" Text="" /></td>
        </tr>
    </ItemTemplate>
    <FooterTemplate>
        </tbody>
        </table>
    </FooterTemplate>
</asp:Repeater>

下面是我的代码。

protected void btnDownload_Click(object sender, EventArgs e)
{
    DataTable dt = new DataTable();
    foreach (RepeaterItem i in rpEmployee.Items)
    {
        HiddenField EmployeeId = (HiddenField)i.FindControl("EmployeeId");
        EmployeeId.Visible = false;
        HiddenField PPBatchEmployeeId = (HiddenField)i.FindControl("PPBatchEmployeeId");
        PPBatchEmployeeId.Visible = false;
        CheckBox chkitem = (CheckBox)i.FindControl("chkSelect");
        chkitem.Visible = false;
    }

    Response.Clear();
    Response.Buffer = true;
    Response.AddHeader("content-disposition", "attachment;filename=RepeaterExport.xls");
    //Response.Charset = "UTF-8";
    Response.Cache.SetCacheability(HttpCacheability.NoCache);  
    Response.ContentType = "application/vnd.ms-excel";
    StringWriter sw = new StringWriter();
    HtmlTextWriter hw = new HtmlTextWriter(sw);
    rpEmployee.RenderControl(hw);
    Response.Output.Write(sw.ToString());
    Response.Flush();
    Response.End();
}

一切似乎都很好，但是当我打开excel。它在我单击“是”后显示此，然后它起作用了。当我转到我朋友的笔记本电脑上并尝试打开它时，它又出现了另一个错误

我不知道为什么。谁能帮帮我？

Answer 1

您确定它是有效的 excel 文件吗？对我来说它看起来 html 文件... 带有 xls 扩展名！

要么创建一个 real/valid xml 文件，要么从 ms

查看这篇文章

XLS file will not open in Excel 2016, only gray view

ASP.NET 将转发器导出到 excel，excel 文件打开时出现错误“'RepeaterExport.xls' 的文件格式和扩展名不匹配

ASP.NET Export repeater to excel, excel file open with error "The file format and extension of 'RepeaterExport.xls' don't match

c#

asp.net

excel

export

asprepeater