c# - HRESULT 异常 : 0x8002000B (DISP_E_BADINDEX) for System. Runtime.InteropServices.COMException

Question

我有一部分代码试图将数据(从数据库)导出到 Excel。当我尝试执行此任务时，它会生成此错误:

System.Runtime.InteropServices.COMException occurred
Additional information: Invalid index. (Exception from HRESULT: 0x8002000B (DISP_E_BADINDEX))

产生此错误的代码:

string ExcelFileName = RootFolder + "\\" + "Work_Sheet.xls";
File.Copy(RootFolder + "\\" + "WorksOrder_Template.xls", ExcelFileName);
Excel.Workbook xlWorkBook;
xlWorkBook = excelApp.Workbooks.Open(ExcelFileName, 0, false, Type.Missing, Type.Missing, Type.Missing, true, Type.Missing, Type.Missing, Type.Missing, true, Type.Missing, false, true, Type.Missing);
Excel.Worksheet Page2;
Excel.Worksheet Page3;
Page2 = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item("Sheet2");
Page3 = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item("Sheet3");

代码行在:

Page3 = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item("Sheet3");

正在生成上述错误。知道如何解决这个问题吗？

Answer 1

WorksOrder_Template.xls 文件中缺少“Sheet3”，因此，当代码尝试获取“Sheet3”时，它生成了错误。