我有一部分代码尝试将数据（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))
生成此错误的代码：
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：
Page3 = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item("Sheet3");
产生上述错误 . 不知道如何解决这个问题？
1 回答
WorksOrder_Template.xls文件中缺少“Sheet3”，因此，当代码尝试获取“Sheet3”时，它会生成错误 .