/// <summary>
/// 简单格式下载，只下载<paramref name="ds"/>的数据行
/// </summary>
/// <param name="name">用户下载框中显示的保存文件名，例如：SN_08082600012.xls</param>
/// <param name="prefix">内部生成的下载文件前缀，例如：SN</param>
/// <param name="format">数据列的格式描述信息</param>
/// <param name="ds"></param>
/// <returns>返回下载文件的链接地址（使用download.aspx）</returns>
public static string DownloadXls(string name, string prefix, IList <DownloadFormat> format, DataSet ds)
{
string fileName = prefix + DateTime.Now.ToString("_yyMMdd_HHmmss") + ".xls";
string filePath = DownloadFolder + fileName;
ExcelApp excelapp = null;
ExcelWorkbook excelBook = null;
ExcelWorksheet excelSheet = null;
try
{
excelapp = new ExcelApp();
excelapp.DisplayAlerts = false;
excelBook = excelapp.NewWorkBook();
excelSheet = excelBook.Worksheets(1);
int rowIndex = 1;
for (int i = 0; i < format.Count; i++)
{
excelSheet.Cells(rowIndex, i + 1).Value = format[i].Title;
}
ExcelRange rg = excelSheet.Range(rowIndex, rowIndex, 1, format.Count);
rg.SelectRange();
rg.Font.Bold = true;
rg.HorizontalAlignment = 3;
rg.Interior.SetColor(221, 221, 221);
rowIndex++;
#region 写文件
foreach (DataRow row in ds.Tables[0].Rows)
{
for (int i = 0; i < format.Count; i++)
{
DownloadFormat ft = format[i];
if (ft.ColumnIndex == null)
{
continue;
}
for (int j = 0; j < ft.ColumnIndex.Length; j++)
{
SetCellValue(excelSheet.Cells(rowIndex, i + 1), j, ft.Type, row, ft.ColumnIndex[j]);
}
}
rowIndex++;
}
#endregion
ExcelRange excelRange = excelSheet.Cells();
excelRange.SelectRange();
excelRange.AutoFit();
excelRange.Font.Size = 10;
excelBook.SaveAs(filePath);
}
catch (Exception er)
{
throw er;
}
finally
{
if (excelSheet != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(excelSheet.COMObject);
}
if (excelBook != null)
{
excelBook.Close();
System.Runtime.InteropServices.Marshal.ReleaseComObject(excelBook.COMObject);
}
if (excelapp != null)
{
excelapp.Quit();
System.Runtime.InteropServices.Marshal.ReleaseComObject(excelapp.COMObject);
}
}
return("/download.aspx?type=p&name=" + Microsoft.JScript.GlobalObject.escape(name) + "&path=" + Microsoft.JScript.GlobalObject.escape(filePath));
}