使用ClosedXML导出excel（且设置其带有时间戳的导出名字）

前段时间项目里有个关于报表变更，将导出的报表名要带有yyyyMMdd这种的时间戳。整理了一个简单关于ClosedXML的小demo：

1． 首先要在项目中引入两个library：ClosedXML.dll 和DocumentFormat.OpenXml.dll
2． 在项目代码中加入引用：usingClosedXML.Excel;
3． demo方法(在代码的最后部分使用了Response来设置export出excel的名字，当时修改这段代码时候出现了上下文不存在Response的错误,解决办法请参照：解决办法：The
name 'Response' does not exist in the current context 本文代码已经解决该异常):

/// <summary>
/// Export an Excel using ClosedXML
/// http://blog.csdn.net/dietime1943 /// </summary>
/// <returns>Returns a byte array object.</returns>
public byte[] FunctionDownload()
{
string[] ReportColumn = { "A","B" };                    // A,B column
string[] ReportColumn_values = { "NAME", "ADDRESS" };   // VALUE

string nowTimeStamp = GetTimeStamp();
string basePath = System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase;
string path = basePath + Common.Constants.Template.LocalPath;
string sourceFile = path + "Export2ExcelForm.xlsx";
string destinationFile = path + "ReportForm" + nowTimeStamp + ".xlsx";
File.Copy(sourceFile, destinationFile, false);

using (XLWorkbook wb = new XLWorkbook(destinationFile))
{
var ws = wb.Worksheet(1);
int row = 1; // + result.IndexOf(resultone);
for (int m = 0; m < ReportColumn.Count(); m++) {
ws.Cell(row, ReportColumn[m]).Value = ReportColumn_values[m];   // A,F column
}

//using (var ms = new MemoryStream())
//{
//    wb.SaveAs(ms);
//    File.Delete(destinationFile);
//    return ms.ToArray();
//}

// 设置report保存的时候名称为: ReportName_yyyyMMdd.xlsx
using (var ms = new MemoryStream())
{
wb.SaveAs(ms);
//return ms.ToArray();

string printdate = Calendar.GetCurrentDate().ToString("yyyyMMdd");
string myName = "ReportForm" + "_" + printdate + ".xlsx";

HttpContext.Current.Response.Clear();
HttpContext.Current.Response.Buffer = true;
HttpContext.Current.Response.AddHeader("content-disposition", "attachment; filename=" + myName);
HttpContext.Current.Response.ContentType = "application/vnd.ms-excel";
// HttpContext.Current.Response.BinaryWrite(ms.ToArray());
HttpContext.Current.Response.End();
File.Delete(destinationFile);
return ms.ToArray();
}
}
}

注：本文原创由`bluetata`发布于blog.csdn.net、转载请务必注明出处。