如何在c#中使用oledb将下拉列数据插入excel

我想将数据插入excel。但是，excel包含下拉列和普通列。

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我正在使用oledb provider将数据插入excel普通列，但我无法使用oledb插入下拉列值，请有人给我指出正确的方向吗？

使用excel Interop，您可以获得下拉列表

下面是示例代码

        // Create an Excel object
        Microsoft.Office.Interop.Excel.Application excel = new  Microsoft.Office.Interop.Excel.Application();

        //Create workbook object
        string str = @"E:\test.xlsx";
        Microsoft.Office.Interop.Excel.Workbook workbook = excel.Workbooks.Open(Filename: str);
        Microsoft.Office.Interop.Excel.Worksheet worksheet1 = workbook.ActiveSheet;
        Microsoft.Office.Interop.Excel.Range range = worksheet1.get_Range("A1","A1");
        Microsoft.Office.Interop.Excel.DropDowns xlDropDowns;
        Microsoft.Office.Interop.Excel.DropDown xlDropDown;
        xlDropDowns = ((Microsoft.Office.Interop.Excel.DropDowns)(workbook.ActiveSheet.DropDowns(Type.Missing)));
        xlDropDown = xlDropDowns.Add((double)range.Left, (double)range.Top, (double)range.Width, (double)range.Height, true);
        xlDropDown.AddItem("item1",1);
        xlDropDown.AddItem("item2", 2);


        //Save the workbook
        workbook.Save();

        //Close the Workbook
        workbook.Close();

        // Finally Quit the Application
        ((Microsoft.Office.Interop.Excel._Application)excel).Quit();

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@拉维特贾切库里·切库里：如果你得到了答案，就把它标记为正确的