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C#数据导出到Excel文件

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#region 数据导出为EXCEL //转载请注明来自 http://www.shang11.com
public static void CreateExcel(DataTable dt, string fileName)

{

StringBuilder strb = new StringBuilder();

strb.Append(" <html xmlns:o=\"urn:schemas-microsoft-com:office:office\"");

strb.Append("xmlns:x=\"urn:schemas-microsoft-com:office:excel\"");

strb.Append("xmlns=\"http://www.w3.org/TR/REC-html40\">");

strb.Append(" <head> <meta http-equiv='Content-Type' content='text/html; charset=utf-8'>");

strb.Append(" <style>");

strb.Append(".xl26");

strb.Append(" {mso-style-parent:style0;");

strb.Append(" font-family:\"Times New Roman\", serif;");

strb.Append(" mso-font-charset:0;");

strb.Append(" mso-number-format:\"@\";}");

strb.Append(" </style>");

strb.Append(" <xml>");

strb.Append(" <x:ExcelWorkbook>");

strb.Append(" <x:ExcelWorksheets>");

strb.Append(" <x:ExcelWorksheet>");

strb.Append(" <x:Name>" + fileName + "</x:Name>");

strb.Append(" <x:WorksheetOptions>");

strb.Append(" <x:DefaultRowHeight>285</x:DefaultRowHeight>");

strb.Append(" <x:Selected/>");

strb.Append(" <x:Panes>");

strb.Append(" <x:Pane>");

strb.Append(" <x:Number>3</x:Number>");

strb.Append(" <x:ActiveCol>1</x:ActiveCol>");

strb.Append(" </x:Pane>");

strb.Append(" </x:Panes>");

strb.Append(" <x:ProtectContents>False</x:ProtectContents>");

strb.Append(" <x:ProtectObjects>False</x:ProtectObjects>");

strb.Append(" <x:ProtectScenarios>False</x:ProtectScenarios>");

strb.Append(" </x:WorksheetOptions>");

strb.Append(" </x:ExcelWorksheet>");

strb.Append(" <x:WindowHeight>6750</x:WindowHeight>");

strb.Append(" <x:WindowWidth>10620</x:WindowWidth>");

strb.Append(" <x:WindowTopX>480</x:WindowTopX>");

strb.Append(" <x:WindowTopY>75</x:WindowTopY>");

strb.Append(" <x:ProtectStructure>False</x:ProtectStructure>");

strb.Append(" <x:ProtectWindows>False</x:ProtectWindows>");

strb.Append(" </x:ExcelWorkbook>");

strb.Append(" </xml>");

strb.Append("");

strb.Append(" </head> <body> <table align=\"center\" style='border-collapse:collapse;table-layout:fixed'>");

if (dt.Rows.Count > 0)

{

strb.Append("<tr>");

//写列标题

int columncount = dt.Columns.Count;

for (int columi = 0; columi < columncount; columi++)

{

strb.Append(" <td style='text-align:center;'><b>" + ColumnName(dt.Columns[columi].ToString()) + "</b></td>");

}

strb.Append(" </tr>");

//写数据

for (int i = 0; i < dt.Rows.Count; i++)

{

strb.Append(" <tr>");

for (int j = 0; j < dt.Columns.Count; j++)

{

strb.Append(" <td class='xl26'>" + dt.Rows[i][j].ToString() + "</td>");

}

strb.Append(" </tr>");

}

}

strb.Append("</table> </body> </html>");

HttpContext.Current.Response.Clear();

HttpContext.Current.Response.Buffer = true;

HttpContext.Current.Response.Charset = "utf-8";

HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment; filename=" + fileName + ".xls");

HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.UTF8;//

HttpContext.Current.Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。

//HttpContext.Current.p.EnableViewState = false;

HttpContext.Current.Response.Write(strb);

HttpContext.Current.Response.End();

}

#endregion

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