[英]C# Export to Excel format
ActionResult: 的ActionResult:
var strLawTable = new StringBuilder();
strLawTable.Append("<thead>");
strLawTable.Append("<tr>");
strLawTable.Append("<th style=\"text-align: right\">Dollar</th>");
strLawTable.Append("</tr>");
strLawTable.Append("</thead>");
strLawTable.Append("<tbody>");
foreach (Currency currency in Model.List)
{
strLawTable.Append("<tr>");
strLawTable.Append("<th style=\"text-align: right\">=\"" + GetExcellFormatString(Currency.USD) + "\"</th>");
strLawTable.Append("</tr>");
}
strLawTable.Append("</tbody>");
string headerTable = "<table>" + strLawTable + "</table>";
Response.Clear();
Response.AddHeader("content-disposition", "attachment;filename=TestFile.xls");
Response.ContentType = "application/ms-excel";
Response.ContentEncoding = System.Text.Encoding.Unicode;
Response.BinaryWrite(System.Text.Encoding.Unicode.GetPreamble());
System.IO.StringWriter sw = new System.IO.StringWriter();
sw.Write(headerTable);
System.Web.UI.HtmlTextWriter hw = new HtmlTextWriter(sw);
Response.Write(sw.ToString());
Response.End();
GetExcellFormatString
method: GetExcellFormatString
方法:
public string GetExcellFormatString(double doubleAmount)
{
if (doubleAmount < 1000)
return doubleAmount.ToString("0.00");
else if (doubleAmount < 1000000)
return doubleAmount.ToString("0000.00");
else if (doubleAmount < 1000000000)
return doubleAmount.ToString("0000,000.00");
else if (doubleAmount < 1000000000000)
return doubleAmount.ToString("0000000000.00");
else return doubleAmount.ToString();
}
My question: 我的问题:
After I exported the data into an Excel file, I have values in my Excel table below, 将数据导出到Excel文件后,我的Excel表格中有值,
Exported Excel table 导出的Excel表格
Dollar 美元
50.0
35.0
40.0
60.0
etc..
If I press to " ctrl " and click with mouse 35.0 and 40.0 Excel can not sum 35.0 and 40.0 because 35.0 is string displays "35.0" and 40.0 is string displays "40.0" . 如果我按 “ ctrl ”并用鼠标35.0和40.0 点击 Excel 不能求和35.0和40.0因为35.0是字符串显示“35.0”而40.0是字符串显示“40.0” 。
The problem is about sum selected rows however I can not sum because values are string not numeric 问题是关于总和选定的行但是我不能求和,因为值是字符串而不是数字
How can I remove " " out of string number in Excel table by C# code ? 如何通过C#代码删除Excel表格中的“”字符串?
Thanks. 谢谢。
To remove the quotes change this line: 要删除引号,请更改此行:
strLawTable.Append("<th style=\"text-align: right\">=\"" + GetExcellFormatString(Currency.USD) + "\"</th>");
^^remove ^^remove
to this: 对此:
strLawTable.Append("<th style=\"text-align: right\">=" + GetExcellFormatString(Currency.USD) + "</th>");
If you're not opposed to using third party libraries, there is this solution: http://www.codeproject.com/Articles/692092/A-free-Export-to-Excel-Csharp-class-using-OpenXML 如果您不反对使用第三方库,可以使用以下解决方案: http : //www.codeproject.com/Articles/692092/A-free-Export-to-Excel-Csharp-class-using-OpenXML
It uses OpenXML library (available through nuget). 它使用OpenXML库(可通过nuget获得)。
It works like a charm - well, if there are only integers and strings in your data. 它就像一个魅力 - 好吧,如果您的数据中只有整数和字符串。 It can be customized, though.
但它可以定制。 The method to look at is
WriteDataTableToExcelWorksheet(DataTable dt, WorksheetPart worksheetPart)
, where you'll have to take care of different data types ( Double
, Decimal
, DateTime
...). 要查看的方法是
WriteDataTableToExcelWorksheet(DataTable dt, WorksheetPart worksheetPart)
,您必须处理不同的数据类型( Double
, Decimal
, DateTime
...)。 I also recomend using number.ToString(CultureInfo.InvariantCulture)
when getting string values of numeric columns. 在获取数字列的字符串值时,我还建议使用
number.ToString(CultureInfo.InvariantCulture)
。 Otherwise there will be the same problem that you have: the column won't be recognized as a correct number (at best it will be a text column, or there will be error in the cell). 否则会出现同样的问题:列不会被识别为正确的数字(最好是文本列,或者单元格中会出错)。
You can also set up custom formatting of numbers in your column (if you really have to use specific formatting for your numbers): http://lateral8.com/articles/2010/6/11/openxml-sdk-20-formatting-excel-values.aspx 您还可以在列中设置数字的自定义格式(如果您确实需要使用特定的数字格式): http : //lateral8.com/articles/2010/6/11/openxml-sdk-20-formatting- Excel的values.aspx
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