asp.net生成Excel并导出下载五种实现方法

发布于 2016-06-25 09:44:19 | 80 次阅读 | 评论: 0 | 来源: 网友投递

ASP.NET

ASP.NET 是.NET FrameWork的一部分，是一项微软公司的技术，是一种使嵌入网页中的脚本可由因特网服务器执行的服务器端脚本技术，它可以在通过HTTP请求文档时再在Web服务器上动态创建它们。指 Active Server Pages（动态服务器页面），运行于 IIS（Internet Information Server 服务，是Windows开发的Web服务器）之中的程序。

有关Excel下载的文章网上想必有很多，利用闲暇时间整理了一些有Excel下载方法的文章，接下来介绍五种实现Excel下载的方法，感兴趣的朋友可以了解下，或许对你学习Excel下载有所帮助

方法一 通过GridView(简评：方法比较简单，但是只适合生成格式简单的Excel，且无法保留VBA代码),页面无刷新

aspx.cs部分

using System; 
using System.Collections; 
using System.Configuration; 
using System.Data; 
using System.Web; 
using System.Web.Security; 
using System.Web.UI; 
using System.Web.UI.HtmlControls; 
using System.Web.UI.WebControls; 
using System.Web.UI.WebControls.WebParts; 
using System.Text; 

public partial class DataPage_NationDataShow : System.Web.UI.Page 
{ 
private Data_Link link = new Data_Link(); 
private string sql; 

protected void Page_Load(object sender, EventArgs e) 
{ 
Ajax.Utility.RegisterTypeForAjax(typeof(DataPage_NationDataShow)); 
} 

protected void btnExcel_Click(object sender, EventArgs e) 
{ 
string strExcelName = "MyExcel"; 
strExcelName = strExcelName.Replace(@"/", ""); 

Data_Link link = new Data_Link(); 
string strSQL = this.hidParam.Value; 
DataSet ds = new DataSet(); 
ds = link.D_DataSet_Return(strSQL);//获得想要放入Excel的数据 

gvExcel.Visible = true; 
gvExcel.DataSource = null; 
gvExcel.DataMember = ds.Tables[0].TableName; 
gvExcel.DataSource = ds.Tables[0]; 
gvExcel.DataBind(); 

ExportToExcel(this.Page, gvExcel, strExcelName); 
} 

protected void gvExcel_RowDataBound(object sender, GridViewRowEventArgs e) 
{ } 
public override void VerifyRenderingInServerForm(Control control) 
{ } 

/// <summary> 
/// 工具方法，Excel出力(解决乱码问题) 
/// </summary> 
/// <param name="page">调用页面</param> 
/// <param name="excel">Excel数据</param> 
/// <param name="fileName">文件名</param> 
public void ExportToExcel(System.Web.UI.Page page, GridView excel, string fileName) 
{ 
try 
{ 
foreach (GridViewRow row in excel.Rows) 
{ 
for (int i = 0; i < row.Cells.Count; i++) 
{ 
excel.HeaderRow.Cells[i].BackColor = System.Drawing.Color.Yellow; 
} 
} 
excel.Font.Size = 10; 
excel.AlternatingRowStyle.BackColor = System.Drawing.Color.LightCyan; 
excel.RowStyle.Height = 25; 

page.Response.AppendHeader("Content-Disposition", "attachment;filename=" + fileName); 
page.Response.Charset = "utf-8"; 
page.Response.ContentType = "application/vnd.ms-excel"; 
page.Response.Write("<meta http-equiv=Content-Type content=text/html;charset=utf-8>"); 
excel.Page.EnableViewState = false; 
excel.Visible = true; 
excel.HeaderStyle.Reset(); 
excel.AlternatingRowStyle.Reset(); 

System.IO.StringWriter oStringWriter = new System.IO.StringWriter(); 
System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter); 
excel.RenderControl(oHtmlTextWriter); 
page.Response.Write(oStringWriter.ToString()); 
page.Response.End(); 

excel.DataSource = null; 
excel.Visible = false; 
} 
catch (Exception e) 
{ 

} 
} 
}

aspx部分

<head runat="server"> 
<script type="text/javascript"> 
//Excel DownLoad 
function excelExport(){ 
var hidText = document.getElementById("hidParam"); 
hidText.value = "some params"; 
document.getElementById("ExcelOutput").click(); 
} 
</script> 
</head> 
<body onload="pageInit()"> 
<form id="form1" runat="server"> 
<input type="button" value="EXCEL下载" style="width:100px;" onclick="excelExport()" id="excelBut" /> 
<input id="hidParam" type="text" runat="server" style="display:none;"/> 
<asp:Button runat="server" ID="ExcelOutput" style="display:none" Text= "EXCEL出力" Width="0px" onclick="btnExcel_Click" UseSubmitBehavior="false"/> 
<asp:GridView ID="gvExcel" runat="server" Height="95px" OnRowDataBound="gvExcel_RowDataBound" Visible="False"></asp:GridView> 
</form> 
</body>

在刚才的aspx.cs代码中

foreach (GridViewRow row in excel.Rows) 
{ 
for (int i = 0; i < row.Cells.Count; i++) 
{ 
excel.HeaderRow.Cells[i].BackColor = System.Drawing.Color.Yellow; 
} 
}

这部分是给表头添加样式。

有时候为了便于浏览，需要给交叉行添加样式，简单点的可以用下面这种：


excel.AlternatingRowStyle.BackColor = System.Drawing.Color.LightCyan;

但是细看一下会发现它把一整行的样式都改变了，包括后面那些没有用到的列。

解决办法是有，不过比较繁琐，就是修改每个单元格的样式。


int rowCount = excel.Rows.Count; 
int colCount = excel.HeaderRow.Cells.Count; 

for (int i = 0; i < rowCount; i++) 
{ 
for(int j=0;j<colCount; j++) 
{ 
excel.Rows[i].Cells[j].BackColor = System.Drawing.Color.LightCyan; 
} 
}

方法二 通过DataGrid(与方法一基本相同),页面无刷新

aspx.cs部分


public override void VerifyRenderingInServerForm(Control control) 
{} 

/// <summary> 
/// エクセル出力イベント 
/// </summary> 
/// <param name="sender"></param> 
/// <param name="e"></param> 
private void ExcelBut_Click(object sender, System.EventArgs e) 
{ 
DataGrid dgExcel = new DataGrid(); 

try 
{ 
DataSet ds = getExcelData(this.PageParams.Value);//出力データを取得する 

if(ds.Tables[0].Rows.Count>0) 
{ 
//エクセルへデータを投入する 
string execlName= "MyExcel"; 
Encoding encodingType=System.Text.Encoding.UTF8; 
dgExcel.DataMember=ds.Tables[0].TableName; 
dgExcel.DataSource=ds.Tables[0]; 

Response.Buffer = true; 
Response.Charset = "utf-8"; 
Response.AppendHeader("Content-Disposition", "attachment;filename=" + execlName+ ".xls"); 
Response.ContentEncoding = encodingType; 
Response.ContentType = "application/ms-excel"; 
StringWriter oStringWriter = new StringWriter(); 
HtmlTextWriter oHtmlTextWriter = new HtmlTextWriter(oStringWriter); 
dgExcel.DataBind(); 
dgExcel.Visible = true; 
dgExcel.RenderControl(oHtmlTextWriter); 
Response.Write(oStringWriter.ToString()); 
Response.Flush(); 
Response.Close(); 
dgExcel.DataSource = null; 
dgExcel.Visible = false; 
} 
else 
{ 
Response.Write("<script>alert('xxxxxx')</script>"); 
} 
} 
catch(Exception ex) 
{ 
Response.Write("<script>alert('oooooo')</script>"); 
} 
}

aspx部分


<head runat="server"> 
<script type="text/javascript"> 
//Excel DownLoad 
function excelExport(){ 
var hidText = document.getElementById("hidParam"); 
hidText.value = "some params"; 
document.getElementById("ExcelOutput").click(); 
} 
</script> 
</head> 
<body onload="pageInit()"> 
<form id="form1" runat="server"> 
<input type="button" value="EXCEL下载" style="width:100px;" onclick="excelExport()" id="excelBut" NAME="excelBut"/> 
<input id="hidParam" type="text" runat="server" style="display:none;" NAME="hidParam"/> 
<asp:Button runat="server" ID="ExcelOutput" style="display:none" Text= "EXCEL出力" Width="0px" onclick="btnExcel_Click" UseSubmitBehavior="false"/> 
<asp:datagrid id="gvExcel" Visible="False" Runat="server" style="Z-INDEX: 107; POSITION: absolute; TOP: 72px; LEFT: 520px" 
Width="80px" Height="40px"></asp:datagrid> 
</form> 
</body>

方法三 以XML形式的Excel方式(可以设置丰富的样式，并可以有多个sheet，但需要模版。速度很快，但生成的文件较大，且无法保留VBA代码)

具体方法：把模版以 XML Document形式另存为A.xml。然后参照A.xml中的内容即可

 
private void ExcelBut_Click(object sender, System.EventArgs e) 
{ 
DataSet ds = new DataSet(); 
string ExcelFileName = ""; 
DataRow dr=[------列名信息-------]; 
try 
{ 
ExcelFileName = Path.Combine(Request.PhysicalApplicationPath + "/ExcelFile", "MyExcel.xls"); 

//获取Excel需要的数据 
ds = [------获得数据-------]; 
if (ds.Tables.Count == 0) 
{ 
Response.Write("<script type='text/javascript'>alert('无数据');</script>"); 
return; 
} 
int sheetNum = ds.Tables.Count / 2; 
StreamWriter writer = new StreamWriter(ExcelFileName, false); 

//Styles标签前面的信息相当于'头信息'，不需要改变 
writer.WriteLine("<?xml version=\"1.0\"?>"); 
writer.WriteLine("<?mso-application progid=\"Excel.Sheet\"?>"); 
writer.WriteLine("<Workbook xmlns=\"urn:schemas-microsoft-com:office:spreadsheet\""); 
writer.WriteLine("xmlns:o=\"urn:schemas-microsoft-com:office:office\""); 
writer.WriteLine("xmlns:x=\"urn:schemas-microsoft-com:office:excel\""); 
writer.WriteLine("xmlns:ss=\"urn:schemas-microsoft-com:office:spreadsheet\""); 
writer.WriteLine("xmlns:html=\"http://www.w3.org/TR/REC-html40\">"); 
writer.WriteLine("<DocumentProperties xmlns=\"urn:schemas-microsoft-com:office:office\">"); 
writer.WriteLine("<LastAuthor>Automated Report Generator Example</LastAuthor>"); 
writer.WriteLine(string.Format("<Created>{0}T{1}Z</Created>", DateTime.Now.ToString("yyyy-mm-dd"), DateTime.Now.ToString("HH:MM:SS"))); 
writer.WriteLine(" <Company>51aspx.com</Company>"); 
writer.WriteLine(" <Version>11.6408</Version>"); 
writer.WriteLine("</DocumentProperties>"); 
writer.WriteLine("<ExcelWorkbook xmlns=\"urn:schemas-microsoft-com:office:excel\">"); 
writer.WriteLine("<WindowHeight>6195</WindowHeight>"); 
writer.WriteLine(" <WindowWidth>18495</WindowWidth>"); 
writer.WriteLine(" <WindowTopX>525</WindowTopX>"); 
writer.WriteLine(" <WindowTopY>4260</WindowTopY>"); 
writer.WriteLine(" <AcceptLabelsInFormulas/>"); 
writer.WriteLine(" <ProtectStructure>True</ProtectStructure>"); 
writer.WriteLine(" <ProtectWindows>False</ProtectWindows>"); 
writer.WriteLine("</ExcelWorkbook>"); 

//通过 ss:ID 和 ss:Name相当于html中style的类 
writer.WriteLine(" <Styles> "); 
writer.WriteLine(" <Style ss:ID='Default' ss:Name='Normal'> "); 
writer.WriteLine(" <Alignment ss:Vertical='Bottom'/> "); 
writer.WriteLine(" <Borders/> "); 
writer.WriteLine(" <Font ss:FontName='ＭＳ Ｐゴシック' x:CharSet='128' x:Family='Modern' ss:Size='11'/> "); 
writer.WriteLine(" <Interior/> "); 
writer.WriteLine(" <NumberFormat/> "); 
writer.WriteLine(" <Protection/> "); 
writer.WriteLine(" </Style> "); 
writer.WriteLine(" <Style ss:ID='s23'> "); 
writer.WriteLine(" <Font ss:FontName='ＭＳ Ｐゴシック' x:CharSet='128' x:Family='Modern' ss:Size='11' "); 
writer.WriteLine(" ss:Color='#FF0000'/> "); 
writer.WriteLine(" </Style> "); 
writer.WriteLine(" <Style ss:ID='s24'> "); 
writer.WriteLine(" <Interior/> "); 
writer.WriteLine(" </Style> "); 
writer.WriteLine(" <Style ss:ID='s25'> "); 
writer.WriteLine(" <Font ss:FontName='ＭＳ Ｐゴシック' x:CharSet='128' x:Family='Modern' ss:Size='11'/> "); 
writer.WriteLine(" <Interior/> "); 
writer.WriteLine(" </Style> "); 
writer.WriteLine(" <Style ss:ID='s26'> "); 
writer.WriteLine(" <Font ss:FontName='ＭＳ Ｐゴシック' x:CharSet='128' x:Family='Modern' ss:Size='11' "); 
writer.WriteLine(" ss:Color='#FF0000'/> "); 
writer.WriteLine(" <Interior/> "); 
writer.WriteLine(" </Style> "); 
writer.WriteLine(" <Style ss:ID='s27'> "); 
writer.WriteLine(" <Borders> "); 
writer.WriteLine(" <Border ss:Position='Bottom' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Left' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Right' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Top' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" </Borders> "); 
writer.WriteLine(" <Font ss:FontName='ＭＳ Ｐゴシック' x:CharSet='128' x:Family='Modern' ss:Size='11'/> "); 
writer.WriteLine(" <Interior ss:Color='#CCFFFF' ss:Pattern='Solid'/> "); 
writer.WriteLine(" <Protection/> "); 
writer.WriteLine(" </Style> "); 
writer.WriteLine(" <Style ss:ID='s28'> "); 
writer.WriteLine(" <Borders> "); 
writer.WriteLine(" <Border ss:Position='Bottom' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Left' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Right' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Top' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" </Borders> "); 
writer.WriteLine(" <Font ss:FontName='ＭＳ Ｐゴシック' x:CharSet='128' x:Family='Modern' ss:Size='11'/> "); 
writer.WriteLine(" <Interior ss:Color='#CCFFFF' ss:Pattern='Solid'/> "); 
writer.WriteLine(" </Style> "); 
writer.WriteLine(" <Style ss:ID='s29'> "); 
writer.WriteLine(" <Borders> "); 
writer.WriteLine(" <Border ss:Position='Bottom' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Left' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Top' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" </Borders> "); 
writer.WriteLine(" <Font ss:FontName='ＭＳ Ｐゴシック' x:CharSet='128' x:Family='Modern' ss:Size='11'/> "); 
writer.WriteLine(" <Interior ss:Color='#CCFFFF' ss:Pattern='Solid'/> "); 
writer.WriteLine(" </Style> "); 
writer.WriteLine(" <Style ss:ID='s30'> "); 
writer.WriteLine(" <Borders> "); 
writer.WriteLine(" <Border ss:Position='Bottom' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Top' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" </Borders> "); 
writer.WriteLine(" <Font ss:FontName='ＭＳ Ｐゴシック' x:CharSet='128' x:Family='Modern' ss:Size='11'/> "); 
writer.WriteLine(" <Interior ss:Color='#CCFFFF' ss:Pattern='Solid'/> "); 
writer.WriteLine(" </Style> "); 
writer.WriteLine(" <Style ss:ID='s31'> "); 
writer.WriteLine(" <Borders> "); 
writer.WriteLine(" <Border ss:Position='Bottom' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Right' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Top' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" </Borders> "); 
writer.WriteLine(" <Font ss:FontName='ＭＳ Ｐゴシック' x:CharSet='128' x:Family='Modern' ss:Size='11'/> "); 
writer.WriteLine(" <Interior ss:Color='#CCFFFF' ss:Pattern='Solid'/> "); 
writer.WriteLine(" </Style> "); 
writer.WriteLine(" <Style ss:ID='s32'> "); 
writer.WriteLine(" <Alignment ss:Vertical='Bottom' ss:WrapText='1'/> "); 
writer.WriteLine(" <Borders> "); 
writer.WriteLine(" <Border ss:Position='Bottom' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Left' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Right' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Top' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" </Borders> "); 
writer.WriteLine(" <Font ss:FontName='ＭＳ Ｐゴシック' x:CharSet='128' x:Family='Modern' ss:Size='11'/> "); 
writer.WriteLine(" <Interior ss:Color='#CCFFFF' ss:Pattern='Solid'/> "); 
writer.WriteLine(" </Style> "); 
writer.WriteLine(" <Style ss:ID='s33'> "); 
writer.WriteLine(" <Alignment ss:Vertical='Bottom' ss:WrapText='1'/> "); 
writer.WriteLine(" </Style> "); 
writer.WriteLine(" <Style ss:ID='s34'> "); 
writer.WriteLine(" <Alignment ss:Vertical='Bottom' ss:WrapText='1'/> "); 
writer.WriteLine(" <Borders> "); 
writer.WriteLine(" <Border ss:Position='Bottom' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Left' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Right' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Top' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" </Borders> "); 
writer.WriteLine(" <Font ss:FontName='ＭＳ Ｐゴシック' x:CharSet='128' x:Family='Modern' ss:Size='11'/> "); 
writer.WriteLine(" <Interior/> "); 
writer.WriteLine(" </Style> "); 
writer.WriteLine(" <Style ss:ID='s35'> "); 
writer.WriteLine(" <Borders> "); 
writer.WriteLine(" <Border ss:Position='Bottom' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Left' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Right' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Top' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" </Borders> "); 
writer.WriteLine(" <Font ss:FontName='ＭＳ Ｐゴシック' x:CharSet='128' x:Family='Modern' ss:Size='11'/> "); 
writer.WriteLine(" <Interior/> "); 
writer.WriteLine(" </Style> "); 
writer.WriteLine(" <Style ss:ID='s36'> "); 
writer.WriteLine(" <Borders> "); 
writer.WriteLine(" <Border ss:Position='Bottom' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Left' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Right' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Top' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" </Borders> "); 
writer.WriteLine(" <Font ss:FontName='ＭＳ Ｐゴシック' x:CharSet='128' x:Family='Modern' ss:Size='11'/> "); 
writer.WriteLine(" <Interior ss:Color='#FFFF99' ss:Pattern='Solid'/> "); 
writer.WriteLine(" <Protection ss:Protected='0'/> "); 
writer.WriteLine(" </Style> "); 
writer.WriteLine(" <Style ss:ID='s37'> "); 
writer.WriteLine(" <Borders> "); 
writer.WriteLine(" <Border ss:Position='Bottom' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Left' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Right' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Top' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" </Borders> "); 
writer.WriteLine(" <Font ss:FontName='ＭＳ Ｐゴシック' x:CharSet='128' x:Family='Modern' ss:Size='11'/> "); 
writer.WriteLine(" <Interior/> "); 
writer.WriteLine(" </Style> "); 
writer.WriteLine(" <Style ss:ID='s38'> "); 
writer.WriteLine(" <Borders> "); 
writer.WriteLine(" <Border ss:Position='Bottom' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Left' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Right' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Top' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" </Borders> "); 
writer.WriteLine(" <Font ss:FontName='ＭＳ Ｐゴシック' x:CharSet='128' x:Family='Modern' ss:Size='11'/> "); 
writer.WriteLine(" <Interior/> "); 
writer.WriteLine(" </Style> "); 
writer.WriteLine(" <Style ss:ID='s39'> "); 
writer.WriteLine(" <Borders> "); 
writer.WriteLine(" <Border ss:Position='Bottom' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Left' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Right' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" <Border ss:Position='Top' ss:LineStyle='Continuous' ss:Weight='1'/> "); 
writer.WriteLine(" </Borders> "); 
writer.WriteLine(" <Font ss:FontName='ＭＳ Ｐゴシック' x:CharSet='128' x:Family='Modern' ss:Size='11'/> "); 
writer.WriteLine(" <Interior/> "); 
writer.WriteLine(" </Style> "); 
writer.WriteLine(" </Styles> "); 

//Sheet操作 
writer.WriteLine("<Worksheet ss:Name='" + dr["Msg030"] + "'>"); 
writer.WriteLine(" <Table ss:ExpandedColumnCount='9' ss:ExpandedRowCount='3000' x:FullColumns='1' x:FullRows='1' ss:StyleID='s33' ss:DefaultColumnWidth='54' ss:DefaultRowHeight='13.5'>"); 
writer.WriteLine("<Column ss:StyleID='s34' ss:AutoFitWidth='0' ss:Width='110.25'/>"); 
writer.WriteLine("<Column ss:StyleID='s34' ss:AutoFitWidth='0' ss:Width='33.75'/>"); 
writer.WriteLine("<Column ss:StyleID='s34' ss:AutoFitWidth='0' ss:Width='118.5'/>"); 
writer.WriteLine("<Column ss:StyleID='s34' ss:AutoFitWidth='0' ss:Width='159.75'/>"); 
writer.WriteLine("<Column ss:StyleID='s34' ss:AutoFitWidth='0' ss:Width='147.75' ss:Span='4'/>"); 

for (int num = sheetNum - 1; num >= 0; num = num - 1) 
{ 
// 考課表間有3行的空行 
if (num != sheetNum - 1) 
{ 
writer.WriteLine("<Row>"); 
writer.WriteLine("</Row>"); 
writer.WriteLine("<Row>"); 
writer.WriteLine("</Row>"); 
writer.WriteLine("<Row>"); 
writer.WriteLine("</Row>"); 
} 

// 列名 
writer.WriteLine("<Row ss:Height='40.5'>"); 
writer.WriteLine("<Cell ss:StyleID='s32'><Data ss:Type='String'>" + dr["Msg002"] + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s32'><Data ss:Type='String'>" + dr["Msg003"] + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s32'><Data ss:Type='String'>" + dr["Msg004"] + "</Data></Cell>"); 
writer.WriteLine("</Row>"); 

// 详细数据 
for (int i = 0; i < ds.Tables[2 * num].Rows.Count; i++) 
{ 
writer.WriteLine("<Row ss:Height='27'>"); 
writer.WriteLine("<Cell><Data ss:Type='String'>" + ds.Tables[2 * num].Rows[i]["EvalLevel1Name"].ToString() + "</Data></Cell>"); 
writer.WriteLine("<Cell><Data ss:Type='Number'>" + ds.Tables[2 * num].Rows[i]["EvalLevel2Code"].ToString() + "</Data></Cell>"); 
writer.WriteLine("<Cell><Data ss:Type='String'>" + ds.Tables[2 * num].Rows[i]["EvalLevel2Name"].ToString() + "</Data></Cell>"); 
writer.WriteLine("</Row>"); 
} 
} 
writer.WriteLine(" </Table>"); 
writer.WriteLine(" </Worksheet>"); 

// 其他Sheet操作 
for (int num = sheetNum - 1; num >= 0; num--) 
{ 
writer.WriteLine("<Worksheet ss:Name='" + ds.Tables[2 * num].Rows[0][1].ToString() + "' ss:Protected='1'>"); 
writer.WriteLine(" <Table ss:ExpandedColumnCount='31' ss:ExpandedRowCount='30000' x:FullColumns='1' x:FullRows='1' ss:StyleID='s25' ss:DefaultColumnWidth='54' ss:DefaultRowHeight='13.5'>"); 
writer.WriteLine(" <Row>"); 
writer.WriteLine("<Cell ss:StyleID='s26'><PhoneticText xmlns='urn:schemas-microsoft-com:office:excel'>カキキイロテンスウツ</PhoneticText><Data ss:Type='String'>" + dr["Msg031"] + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:Index='14' ss:StyleID='Default'/>"); 
writer.WriteLine("<Cell ss:StyleID='Default'/>"); 
writer.WriteLine("<Cell ss:StyleID='Default'/>"); 
writer.WriteLine("<Cell ss:StyleID='Default'/>"); 
writer.WriteLine("<Cell ss:StyleID='Default'/>"); 
writer.WriteLine("<Cell ss:StyleID='Default'/>"); 
writer.WriteLine("<Cell ss:StyleID='Default'/>"); 
writer.WriteLine("<Cell ss:StyleID='Default'/>"); 
writer.WriteLine("<Cell ss:StyleID='Default'/>"); 
writer.WriteLine("</Row>"); 
writer.WriteLine(" <Row>"); 
writer.WriteLine("<Cell ss:StyleID='s26'><PhoneticText xmlns='urn:schemas-microsoft-com:office:excel'>カキキイロテンスウツ</PhoneticText><Data ss:Type='String'>" + dr["Msg032"] + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:Index='14' ss:StyleID='Default'/>"); 
writer.WriteLine("<Cell ss:StyleID='Default'/>"); 
writer.WriteLine("<Cell ss:StyleID='Default'/>"); 

writer.WriteLine("</Row>"); 

// 列名 
writer.WriteLine("<Row>"); 
writer.WriteLine("<Cell ss:StyleID='s27'><Data ss:Type='String'>" + dr["Msg001"] + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s28'><Data ss:Type='String'>" + dr["Msg002"] + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s28'><Data ss:Type='String'>" + dr["Msg003"] + "</Data></Cell>"); 
writer.WriteLine("</Row>"); 
int SheetN = ds.Tables[2 * num].Rows.Count; 

//详细数据 
for (int i = 0; i < SheetN; i++) 
{ 
writer.WriteLine("<Row>"); 
writer.WriteLine("<Cell ss:StyleID='s35'><Data ss:Type='Number'>" + ds.Tables[2 * num].Rows[i]["EvalLevel1Code"].ToString() + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s35'><Data ss:Type='String'>" + ds.Tables[2 * num].Rows[i]["EvalLevel1Name"].ToString() + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s35'><Data ss:Type='Number'>" + ds.Tables[2 * num].Rows[i]["EvalLevel2Code"].ToString() + "</Data></Cell>"); 
writer.WriteLine("<Cell><Data ss:Type='String'> </Data></Cell>"); 
writer.WriteLine("</Row>"); 
} 
writer.WriteLine("<Row>"); 
writer.WriteLine("</Row>"); 
writer.WriteLine("<Row>"); 
writer.WriteLine("</Row>"); 

//列名 
writer.WriteLine("<Row>"); 
writer.WriteLine("<Cell ss:StyleID='s29'><Data ss:Type='String'>" + dr["Msg011"] + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s30'/>"); 
writer.WriteLine("<Cell ss:StyleID='s31'/>"); 
writer.WriteLine("<Cell ss:StyleID='s29'><Data ss:Type='String'>" + dr["Msg012"] + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s31'/>"); 
writer.WriteLine("<Cell ss:StyleID='s29'><Data ss:Type='String'>" + dr["Msg013"] + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s30'/>"); 
writer.WriteLine("<Cell ss:StyleID='s30'/>"); 
writer.WriteLine("<Cell ss:StyleID='s30'/>"); 
writer.WriteLine("<Cell ss:StyleID='s31'/>"); 
writer.WriteLine("<Cell ss:StyleID='s29'><Data ss:Type='String'>" + dr["Msg014"] + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s31'/>"); 
writer.WriteLine("<Cell ss:StyleID='s29'><Data ss:Type='String'>" + dr["Msg015"] + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s31'/>"); 
writer.WriteLine("</Row>"); 
writer.WriteLine("<Row>"); 
writer.WriteLine("<Cell ss:StyleID='s28'><Data ss:Type='String'>" + dr["Msg016"] + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s28'><Data ss:Type='String'>" + dr["Msg017"] + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s28'><Data ss:Type='String'>" + dr["Msg018"] + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s28'><Data ss:Type='String'>" + dr["Msg019"] + "</Data></Cell>"); 

writer.WriteLine("</Row>"); 
int DateLen = ds.Tables[2 * num + 1].Rows.Count; 
string EmployeeManagement = ""; 

for (int i = 0; i < DateLen; i++) 
{ 
writer.WriteLine("<Row>"); 
writer.WriteLine("<Cell ss:StyleID='s37'><Data ss:Type='Number'>" + ds.Tables[2 * num + 1].Rows[i]["EmployeeManagementID"].ToString() + "</Data></Cell>"); 
if (!EmployeeManagement.Equals(ds.Tables[2 * num + 1].Rows[i]["EmployeeManagementID"].ToString())) 
{ 
writer.WriteLine("<Cell ss:StyleID='s35'><Data ss:Type='Number'>" + ds.Tables[2 * num + 1].Rows[i]["EmployeeCode"].ToString() + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s35'><Data ss:Type='String'>" + ds.Tables[2 * num + 1].Rows[i]["EmployeeName"].ToString() + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s35'><Data ss:Type='String'>" + ds.Tables[2 * num + 1].Rows[i]["BefEmployeeName2"].ToString() + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s35'><Data ss:Type='String'>" + ds.Tables[2 * num + 1].Rows[i]["EmployeeName2"].ToString() + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s38'><Data ss:Type='Number'>" + ds.Tables[2 * num + 1].Rows[i]["EvalLevel1Code"].ToString() + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s35'><Data ss:Type='String'>" + ds.Tables[2 * num + 1].Rows[i]["EvalLevel1Name"].ToString() + "</Data></Cell>"); 
EmployeeManagement = ds.Tables[2 * num + 1].Rows[i]["EmployeeManagementID"].ToString(); 
} 
else 
{ 
writer.WriteLine("<Cell ss:StyleID='s35'><Data ss:Type='String'></Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s35'><Data ss:Type='String'></Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s35'><Data ss:Type='String'></Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s35'><Data ss:Type='String'></Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s38'><Data ss:Type='String'></Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s35'><Data ss:Type='String'></Data></Cell>"); 
} 
writer.WriteLine("<Cell ss:StyleID='s39'><Data ss:Type='Number'>" + ds.Tables[2 * num + 1].Rows[i]["EvalLevel2Code"].ToString() + "</Data></Cell>"); 
writer.WriteLine("<Cell ss:StyleID='s35'><Data ss:Type='String'>" + ds.Tables[2 * num + 1].Rows[i]["EvalLevel2Name"].ToString() + "</Data></Cell>"); 
writer.WriteLine("</Row>"); 
} 
writer.WriteLine(" </Table>"); 
writer.WriteLine(" </Worksheet>"); 
} 

writer.WriteLine("</Workbook>"); 
writer.Close(); 

FileDownload(ExcelFileName); 
} 
catch (System.Exception ex) 
{ 

} 
finally 
{ 
Response.End(); 
} 
} 
public void FileDownload(FullFileName) 
{ 
FileInfo DownloadFile = new FileInfo(FullFileName); 
Response.Clear(); 
Response.ClearHeaders(); 
Response.Buffer = true; 
Response.AppendHeader("Content-Disposition", "attachment;filename=" + System.Web.HttpUtility.UrlEncode(System.Text.Encoding.UTF8.GetBytes(MyFile".xls"))); 
Response.ContentType = "application/ms-excel;charset=UTF-8";//DownloadFile.FullNameoctet-stream 
Response.ContentEncoding = System.Text.Encoding.GetEncoding("shift-jis"); 
Response.AppendHeader("Content-Length", DownloadFile.Length.ToString()); 
Response.WriteFile(FullFileName); 
Response.Flush(); 

if (File.Exists(FullFileName)) 
{ 
File.Delete(FullFileName); 
} 
}

方法四 用微软的COM组件操作Excel。虽然可以很方便的操作单元格，并且能保留VBA代码，它相当于直接打开一个EXCEL进程。

当初这个COM组件式给WinForm准备的，但在Web端有很多东西的支持不尽人意，例如无法用组件中的方法关闭Excel对象，

只能通过强制关闭Excel进程的方式(这其中还有很多问题，例如只能关闭当前打开的这个Excel的进程，否则会把其他用户的Excel进程关闭)。在这里不推荐

方法五 用流的方式，把内容以Table的格式向Excel中放数据好处是可以生成格式丰富复杂的Excel，页面无刷新

aspx部分


<asp:Button ID="hidExport" onClick="hidExport_Click()" Runat="server"></asp:Button>

aspx.cs部分


//内容很好理解，只需当成Table来拼字符串即可 
private string getExcelContent() 
{ 
StringBuilder sb = new StringBuilder(); 

sb.Append("<table borderColor='black' border='1' >"); 
sb.Append("<thead><tr><th colSpan='2' bgColor='#ccfefe'>标题</th></tr>"); 
sb.Append("<tr><th bgColor='#ccfefe'>号码</th><th bgColor='#ccfefe'>名字</th></tr></thead>"); 
sb.Append("<tbody>"); 
sb.Append("<tr class='firstTR'><td bgcolor='#FF99CC'></td><td></td></tr>"); 
sb.Append("<tr class='secondTR'><td></td><td bgcolor='lightskyblue'></td></tr>"); 
sb.Append("</tbody></table>"); 
return sb.ToString(); 
} 

private void hidExport_Click(object sender, System.EventArgs e) 
{ 
string content = getExcelContent(); 
string css = ".firstTR td{color:blue;width:100px;}.secondTR td{color:blue;width:100px;}"; 
string filename = "Test.xls"; 

CommonTool.ExportToExcel(filename, content ,css); 
}

工具类CommonTool


public class CommonTool 
{ 
/// <summary> 
/// 以流的形式，可以设置很丰富复杂的样式 
/// </summary> 
/// <param name="content">Excel中内容(Table格式)</param> 
/// <param name="filename">文件名</param> 
/// <param name="cssText">样式内容</param> 
public static void ExportToExcel(string filename, string content,string cssText) 
{ 
var res = HttpContext.Current.Response; 
content = String.Format("<style type='text/css'>{0}</style>{1}",cssText,content); 

res.Clear(); 
res.Buffer = true; 
res.Charset = "UTF-8"; 
res.AddHeader("Content-Disposition", "attachment; filename=" + filename); 
res.ContentEncoding = System.Text.Encoding.GetEncoding("UTF-8"); 
res.ContentType = "application/ms-excel;charset=UTF-8"; 
res.Write(content); 
res.Flush(); 
res.End(); 
} 
}

这种方法比较灵活，而且可以通过选择器来添加样式，相当不错。缺点就是需要将数据转换成字符串。

asp.net生成Excel并导出下载五种实现方法

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