1.代碼案例：

protected void btnExportExcel_Click(object sender, EventArgs e)
{
SetSearchValue();
Dictionary<string, string> titles = new Dictionary<string, string>();
titles.Add("ProductName", "產品名稱");

titles.Add("DanOrShuang", "單機/雙機");

titles.Add("SN1", "SN1");

titles.Add("SN2", "SN2");

titles.Add("InstallQTY", " 安裝數量");

titles.Add("ServerName", "服務器名稱");

titles.Add("Area", " 區域");

titles.Add("CustomerName", " 客戶名稱");

titles.Add("CinemaName", "影院名稱");

SII_ExcelExportUtil.ExcelExport("Tenancy Equipment", "Tenancy Equipment", this, _bll.ExportExcel(_search), titles);
}

======================
public class SII_ExcelExportUtil:ExcelExportUtil
{
public static void ExcelExport(string FileName, string sheetName, Page page, IList list,Dictionary<string,string> Titles)
{

new SII_ExcelExportUtil().ExcelExportData(FileName, sheetName, page, list, Titles);
}
}

2.

----------------

public virtual bool ExcelExportData(string FileName, string sheetName, Page page, IList list, Dictionary<string, string> Titles)
{
Excel.Application m_xlApp = null;
string path;
string floder;
GetPath(FileName, page, out path, out floder);
bool result = false;
//if (list != null && list.Count > 0)
if (Titles!=null && Titles.Count>0)
{

int rowNum = list.Count;//行數
int columnNum = Titles.Count;//列數
m_xlApp = new Excel.Application();
m_xlApp.DisplayAlerts = false;//不顯示更改提示
m_xlApp.Visible = false;

Excel.Workbooks workbooks = m_xlApp.Workbooks;
Excel.Workbook workbook = workbooks.Add(Excel.XlWBATemplate.xlWBATWorksheet);
Excel.Worksheet worksheet = (Excel.Worksheet)workbook.Worksheets[1];//取得sheet1

try
{
worksheet.Name = sheetName;
string[,] datas = new string[rowNum + 1, columnNum];

int columnIndex = 0;
foreach (KeyValuePair<string, string> item in Titles)
{
datas[0, columnIndex] = item.Value;
columnIndex++;
}
Excel.Range range = SetColumsStyle(columnNum, worksheet);

if (list != null && list.Count > 0)
{
PropertyInfo[] Columns = list[0].GetType().GetProperties();
for (int index = 0; index < list.Count; index++)
{

//在當前行中，逐列獲得數據
int cIndex = 0;
foreach (KeyValuePair<string, string> item in Titles)
{
PropertyInfo pro = Columns.First(p => p.Name == item.Key);
string value = "";
if (pro != null)
{
object resultValue = pro.GetValue(list[index], null);
if (resultValue is DateTime)
{
value = Convert.ToDateTime(resultValue).ToString("yyyy/MM/dd");
}
else value = resultValue == null ? "" : resultValue.ToString();
}
datas[index + 1, cIndex] = value;
cIndex++;
}
}
}
range = SetRowData(m_xlApp, path, rowNum, columnNum, worksheet, datas, range);
workbook.SaveAs(path);
result = true;
}
catch (Exception ex)
{
}
finally
{
EndReport(m_xlApp);
}
HttpDown(path, page, floder);
}
return result;
}

-----------

private Excel.Range SetRowData(Excel.Application m_xlApp, string path, int rowNum, int columnNum, Excel.Worksheet worksheet, string[,] datas, Excel.Range range)
{
Excel.Range fchR = worksheet.Range[worksheet.Cells[1, 1], worksheet.Cells[rowNum + 1, columnNum]];
fchR.Value2 = datas;

worksheet.Columns.EntireColumn.AutoFit();//列寬自適應。
m_xlApp.WindowState = Excel.XlWindowState.xlMinimized;

range = worksheet.Range[worksheet.Cells[1, 1], worksheet.Cells[rowNum + 1, columnNum]];
//range.Interior.ColorIndex = 15;//15代表灰色
range.Font.Size = 9;
range.RowHeight = 14.25;
//range.Borders.LineStyle = 1;
range.HorizontalAlignment = 1;
ActiveWindow(m_xlApp);
//workbook.SaveCopyAs(path);

return range;
}

反射導出excel案例