在部署.net C＃MVC應用程序後保存/打開文件錯誤

在我的MVC應用程序中，我使用Microsoft.Office.Interop.Excel將數據導出到excel。在部署.net C＃MVC應用程序後保存/打開文件錯誤

我也啓用了ASP.NET Impersonation並給出了驗證細節。它將數據寫入excel，但不保存或打開excel文件。它引發了一個例外Exception from HRESULT: 0x800A03EC。如果有人能幫忙，我會很高興。提前致謝。

我出口的代碼是：

public static void ExportExcel(this DataTable Tbl, string ExcelFilePath = null) 
     { 
      ExcelFilePath = "ExportTable.xls"; 
      try 
      { 
       if (Tbl == null || Tbl.Columns.Count == 0) 
        //throw new Exception("ExportToExcel: Null or empty input table!\n"); 
        Console.WriteLine("ExportToExcel: Null or empty input table!\n"); 

       // load excel, and create a new workbook 
       Excel.Application excelApp = new Excel.Application(); 
       excelApp.Workbooks.Add(); 

       // single worksheet 
       Excel._Worksheet workSheet = excelApp.ActiveSheet; 

       // column headings 
       for (int i = 0; i < Tbl.Columns.Count; i++) 
       { 
        workSheet.Cells[1, (i + 1)] = Tbl.Columns[i].ColumnName; 
        workSheet.Cells[1, (i + 1)].Font.Bold = true; 
        workSheet.Cells[1, (i + 1)].Font.Size = 12; 
       } 

       // rows 
       for (int i = 0; i < Tbl.Rows.Count; i++) 
       { 
        // to do: format datetime values before printing 
        for (int j = 0; j < Tbl.Columns.Count; j++) 
        { 
         workSheet.Cells[(i + 2), (j + 1)] = Tbl.Rows[i][j]; 
        } 
       } 
       // works fine till here 
       // check fielpath 
       if (ExcelFilePath != null && ExcelFilePath != "") 
       { 
        try 
        { 
         workSheet.SaveAs(ExcelFilePath); 
         excelApp.Quit(); 
        } 
        catch (Exception ex) 
        { 
         Console.WriteLine("ExportToExcel: Excel file could not be saved! Check filepath.\n"+ ex.Message); 
        } 
       } 
       else // no filepath is given 
       { 
        excelApp.Visible = true; 
       } 
      } 
      catch (Exception ex) 
      { 
       Console.WriteLine("ExportToExcel: \n" + ex.Message); 
      }

}

來源

2013-08-30 blue