ASP.NET Excel下载方法一览
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HTML的格式向Excel中输出数据 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。
上面的方式是，通过WebForm控件调用后台方法，在后台方法中从数据源获取并整合成要导出的内容，然后输出；
对这种方式稍加升级，就可以处理导出页面内容到Excel。大体思路：
- 在前端页面通过js获取要导出到Excel的html内容
- 将内容传输到后端
- 后端接收数据（例如ashx、Controller、aspx.cs）
- 后端对数据进行处理，并输出到前端页面（还是使用上面的工具类方法ExportToExcel）
麻烦的地方在第2步，要面对的问题有两个：
- 因为这里需要将数据传到后端，同时还要下载文件，所以使用ajax是不行了，只能使用form post表单数据
- 上传数据、下载文件的时候不能刷新页面
由这两点出发，解决方式如下：
var excelInfo = document.getElementById("excelArea").innerHTML;//获取要导出到Excel的内容
var actionTarget = "/ExcelExportController/Export"; //接收Excel数据的后端接口
var excelStr = ''/
+'<div'/
+' <form id="excelForm" action="' + actionTarget + '" method="post" enctype="application/x-www-form-urlencoded" target="exportFormFrame">'/
+' <input name="excelInfo" type="hidden" value="' + excelInfo + '" />'/
+' </form>'/
+' <iframe name="exportFormFrame" id="exportFormFrame" style="width: 0px;height: 0px;display:none;"></iframe>'/
+'</div>';
$(document.body).append(excelStr);
$('#excelForm').submit();
注：直接向Excel输出html有几个注意点：
- 单元格内换行 <br style='mso-data-placement:same-cell;'/>
- 设置表格的边框样式 borderColor='black' border='1'
- 设置行高列宽要使用pt，px无效（也许有其他原因，我测试的是这样）
- excel空余部分边框的问题。用此方法输出的excel，空余部分边框都不显示，如果要做成想普通excel的样子，需在输出流的head部分加上excel的设置
<!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name></x:Name><x:WorksheetOptions> <x:Selected/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]-->
附 ：
1.动态的让单元格中的内容换行
例 原内容是 博客园是面向开发者的知识分享社区，不允许发布任何推广、广告、政治方面的内容
目标状态是
博客园是面向开发者的知识分享社区 不允许发布任何推广、广告、政治方面的内容
则只需将程序中要填入该单元格的内容改成如下格式即可【即在换行处加 &CHAR(10)& 即可】
="博客园是面向开发者的知识分享社区"&CHAR(10)&"不允许发布任何推广、广告、政治方面的内容"
2.通过IE生成文件的时候，经常会出现文件名乱码的情况，只需要如下方式对文件名编码即可
string excelName="数据导出.xls"; excelName = HttpUtility.UrlEncode(Encoding.UTF8.GetBytes(excelName));
转载出处：http://www.cnblogs.com/TiestoRay/archive/2013/02/02/2576134.html
